2.6.8

Use TCLTK_* and pkg-config for 3.11+ linking with Homebrew Tcl/Tk; add PYTHON_BUILD_TCLTK_FORMULA envvar

.agignore

@@ -0,0 +1,2 @@
+./versions
+./cache

.dockerignore

@@ -0,0 +1,4 @@
+.git/
+.python-version
+.vscode/
+.idea/

.editorconfig

@@ -0,0 +1,11 @@
+# Editor configuration, see https://editorconfig.org
+root = true
+
+[*]
+end_of_line = lf
+charset = utf-8
+
+# Makefiles always use tabs for indentation
+[Makefile]
+indent_style = tab
+indent_size = unset # Allow user-defined tab width

.github/CODEOWNERS

@@ -0,0 +1 @@
+*       @pyenv/pyenv-core-maintainers @pyenv/pyenv-core-committers

.github/FUNDING.yml

@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [pyenv] # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+patreon: # Replace with a single Patreon username
+open_collective: pyenv # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,26 @@
+Too many issues will kill our team's development velocity, drastically.
+Make sure you have checked all steps below.
+
+### Prerequisite
+* [ ] Make sure your problem is not listed in [the common build problems](https://github.com/pyenv/pyenv/wiki/Common-build-problems).
+* [ ] Make sure no duplicated issue has already been reported in [the pyenv issues](https://github.com/pyenv/pyenv/issues). You should look for closed issues, too.
+* [ ] Make sure you are not asking us to help solving your specific issue.
+  * GitHub issues is opened mainly for development purposes. If you want to ask someone to help solving your problem, go to some community site like [Gitter](https://gitter.im/yyuu/pyenv), [StackOverflow](https://stackoverflow.com/questions/tagged/pyenv), etc.
+* [ ] Make sure your problem is not derived from packaging (e.g. [Homebrew](https://brew.sh)).
+  * Please refer to the package documentation for the installation issues, etc.
+* [ ] Make sure your problem is not derived from plugins.
+  * This repository is maintaining `pyenv` and the default `python-build` plugin only. Please refrain from reporting issues of other plugins here.
+
+### Description
+- [ ] Platform information (e.g. Ubuntu Linux 16.04):
+- [ ] OS architecture (e.g. amd64):
+- [ ] pyenv version:
+- [ ] Python version:
+- [ ] C Compiler information (e.g. gcc 7.3): 
+- [ ] Please attach the debug trace of the failing command as a gist:
+  * Run `env PYENV_DEBUG=1 <faulty command> 2>&1 | tee trace.log` and attach `trace.log`. E.g. if you have a problem with installing Python, run `env PYENV_DEBUG=1 pyenv install -v <version> 2>&1 | tee trace.log` (note the `-v` option to `pyenv install`).
+- [ ] If you have a problem with installing Python, please also attach `config.log` from the build directory
+  * The build directory is reported after the "BUILD FAILED" message and is usually under `/tmp`.
+- [ ] If the build succeeds but the problem is still with the build process (e.g. the resulting Python is missing a feature), please attach
+  * the debug trace from reinstalling the faulty version with `env PYENV_DEBUG=1 pyenv install -f -k -v <version> 2>&1 | tee trace.log`
+  * `config.log` from the build directory. When using `pyenv install` with `-k` as per above, the build directory will be under `$PYENV_ROOT/sources`.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,54 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+### Prerequisites
+* [ ] Make sure your problem is not listed in [the common build problems](https://github.com/pyenv/pyenv/wiki/Common-build-problems).
+* [ ] Make sure no duplicated issue has already been reported in [the pyenv issues](https://github.com/pyenv/pyenv/issues?q=is%3Aissue). For build errors, a reported issue typically mentions a key error message. This key error message is often not in the 10 last build log lines reported to the console but is rather earlier in the build log -- typically, it's the first error message encountered in the log.
+* [ ] Make sure you are reporting a problem in Pyenv and not seeking consultation with Pyenv usage.
+  * GitHub issues are intended mainly for Pyenv development purposes. If you are seeking help with Pyenv usage, check [Pyenv documentation](https://github.com/pyenv/pyenv?tab=readme-ov-file#simple-python-version-management-pyenv), go to a user community site like [Gitter](https://gitter.im/yyuu/pyenv), [StackOverflow](https://stackoverflow.com/questions/tagged/pyenv), etc, or to [Discussions](https://github.com/orgs/pyenv/discussions).
+* [ ] Make sure your problem is not derived from packaging (e.g. [Homebrew](https://brew.sh)).
+  * Please refer to the package documentation for the installation issues, etc.
+* [ ] Make sure your problem is not derived from plugins.
+  * This repository is maintaining `pyenv` and the default `python-build` plugin only. Please refrain from reporting issues of other plugins here.
+
+### Describe the bug
+A clear and concise description of what the bug is.
+Do specify what the expected behaviour is if that's not obvious from the bug's nature.
+
+#### Reproduction steps
+Listing the commands to run in a new console session and their output is usually sufficient.
+Please use a Markdown code block (three backticks on a line by themselves before and after the text) to denote a console output excerpt.
+Usually not needed for build errors (since the arguments can already be seen in the debug trace) unless you are using an unusual invocation (e.g. setting environment variables that affect the build).
+
+#### Diagnostic details
+- [ ] Platform information (e.g. Ubuntu Linux 24.04):
+- [ ] OS architecture (e.g. amd64):
+- [ ] pyenv version:
+- [ ] Python version:
+- [ ] C Compiler information (e.g. gcc 7.3): 
+- [ ] Please attach the debug trace of the failing command as a [gist](https://gist.github.com/):
+  * Run `env PYENV_DEBUG=1 <faulty command> 2>&1 | tee trace.log` and attach `trace.log`. E.g. if you have a problem with installing Python, run `env PYENV_DEBUG=1 pyenv install -v <version> 2>&1 | tee trace.log` (note the `-v` option to `pyenv install`).
+- [ ] If you have a problem with installing Python, please also attach `config.log` from the build directory
+  * The build directory is reported after the "BUILD FAILED" message and is usually under `/tmp`.
+- [ ] If the build succeeds but the problem is still with the build process (e.g. the resulting Python is missing a feature), please attach
+  * the debug trace from reinstalling the faulty version with `env PYENV_DEBUG=1 pyenv install -f -k -v <version> 2>&1 | tee trace.log`
+  * `config.log` from the build directory. When using `pyenv install` with `-k` as per above, the build directory will be under `$PYENV_ROOT/sources`.
+- [ ] If the problem happens in another Pyenv invocation, turn on debug logging by setting `PYENV_DEBUG=1`, e.g. `env PYENV_DEBUG=1 pyenv local 3.6.4`, and attach the resulting trace as a gist
+- [ ] If the problem happens outside of a Pyenv invocation, get the debug trace like this:
+     ```
+     export PYENV_DEBUG=1
+     # for Bash
+     export PS4='+(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
+     # for Zsh
+     export PS4='+(%x:%I): %N(%i): '
+
+     set -x
+     <reproduce the problem>
+     set +x
+     ```

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,24 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the intended use case**
+* What your general environment is if it's relevant to the feature request and is not a generic console with a typical Pyenv installation (CI, server with a custom setup, cloud environment, IDE)
+* What you are trying to achieve
+* What specifically you are doing for that regarding Pyenv
+* Where you are stuck
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+[ ] In particular, did you consider [writing a plugin](https://github.com/pyenv/pyenv/blob/master/README.md#pyenv-plugins)? Note that if your plugin has general applicability, you can publish it in the 3rd-party plugin catalog on the Pyenv Wiki as per the link above.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,16 @@
+Make sure you have checked all steps below.
+
+### Prerequisite
+* [ ] Please consider implementing the feature as a hook script or plugin as a first step.
+  * pyenv has some powerful support for plugins and hook scripts. Please refer to [Authoring plugins](https://github.com/pyenv/pyenv/wiki/Authoring-plugins) for details and try to implement it as a plugin if possible.
+* [ ] Please consider contributing the patch upstream to [rbenv](https://github.com/rbenv/rbenv), since we have borrowed most of the code from that project.
+  * We occasionally import the changes from rbenv. In general, you can expect changes made in rbenv will be imported to pyenv too, eventually.
+  * Generally speaking, we prefer not to make changes in the core in order to keep compatibility with rbenv.
+* [ ] My PR addresses the following pyenv issue (if any)
+  - Closes https://github.com/pyenv/pyenv/issues/XXXX
+
+### Description
+- [ ] Here are some details about my PR
+
+### Tests
+- [ ] My PR adds the following unit tests (if any)

.github/dependabot.yml

@@ -0,0 +1,10 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    groups:
+      github-actions:
+        patterns:
+          - "*"

.github/workflows/macos_build.yml

@@ -0,0 +1,43 @@
+name: macos_build
+on: [pull_request, push]
+
+permissions:
+  contents: read  #  to fetch code (actions/checkout)
+
+jobs:
+  macos_build:
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version:
+          - "3.9"
+          - "3.10"
+          - "3.11"
+          - "3.12"
+          - "3.13"
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v5
+      # Normally, we would use the superbly maintained...
+      # - uses: actions/setup-python@v2
+      #   with:
+      #    python-version: ${{ matrix.python-version }}
+      # ... but in the repo, we want to test pyenv builds on macOS
+      - run: |
+          brew install openssl readline sqlite3 xz tcl-tk@8 libb2 zstd
+      # https://github.com/pyenv/pyenv#installation
+      - run: pwd
+      - env:
+          PYENV_ROOT: /Users/runner/work/pyenv/pyenv
+        run: |
+          echo $PYENV_ROOT
+          echo "$PYENV_ROOT/shims:$PYENV_ROOT/bin" >> $GITHUB_PATH
+          bin/pyenv --debug install ${{ matrix.python-version }}
+          bin/pyenv global ${{ matrix.python-version }}
+          bin/pyenv rehash
+      - run: python --version
+      - run: python -m pip --version
+      - shell: python  # Prove that actual Python == expected Python
+        env:
+          EXPECTED_PYTHON: ${{ matrix.python-version }}
+        run: import os, sys ; assert sys.version.startswith(os.getenv("EXPECTED_PYTHON"))

.github/workflows/modified_scripts_build.yml

@@ -0,0 +1,273 @@
+name: modified_scripts
+on: [pull_request]
+jobs:
+  discover_modified_scripts:
+    runs-on: ubuntu-latest
+    outputs:
+      versions: ${{steps.modified-versions.outputs.versions}}
+    steps:
+      - uses: actions/checkout@v5
+      - run: git fetch origin "$GITHUB_BASE_REF"
+      - shell: bash
+        run: >
+          versions=$(git diff "origin/$GITHUB_BASE_REF" --name-only -z
+          | perl -ne 'BEGIN {$\="\n";$/="\0";} chomp;
+            if (/^plugins\/python-build\/share\/python-build\/(?:([^\/]+)|patches\/([^\/]+)\/.*)$/ and -e $& )
+                { print $1.$2; }' \
+          | sort -u);
+          EOF=$(dd if=/dev/urandom bs=15 count=1 status=none | base64);
+          echo "versions<<$EOF" >> $GITHUB_ENV;
+          echo "$versions" >> $GITHUB_ENV;
+          echo "$EOF" >> $GITHUB_ENV;
+          
+          versions_cpython_only=$(grep -Ee '^[[:digit:]]' <<<"$version")
+          EOF=$(dd if=/dev/urandom bs=15 count=1 status=none | base64);
+          echo "versions_cpython_only<<$EOF" >> $GITHUB_ENV;
+          echo $versions_cpython_only >> $GITHUB_ENV;
+          echo "$EOF" >> $GITHUB_ENV;
+      - id: modified-versions
+        run: |
+          echo "versions=`echo "${{ env.versions }}" | jq -R . | jq -sc .`" >> $GITHUB_OUTPUT
+          echo "versions_cpython_only=`echo "${{ env.versions_cpython_only }}" | jq -R . | jq -sc .`" >> $GITHUB_OUTPUT
+  macos_build:
+    needs: discover_modified_scripts
+    if: needs.discover_modified_scripts.outputs.versions != '[""]'
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ${{fromJson(needs.discover_modified_scripts.outputs.versions)}}
+        os: ["macos-13", "macos-14", "macos-15"]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v5
+      - run: |
+          #envvars
+          export PYENV_ROOT="$GITHUB_WORKSPACE"
+          echo "PYENV_ROOT=$PYENV_ROOT" >> $GITHUB_ENV
+          echo "$PYENV_ROOT/shims:$PYENV_ROOT/bin" >> $GITHUB_PATH
+      - run: |
+          #prerequisites
+          brew install openssl openssl@1.1 readline sqlite3 xz zlib
+          if [[ "${{ matrix.python-version }}" =~ pypy.*-(src|dev) ]]; then
+            export PYENV_BOOTSTRAP_VERSION=pypy2.7-7
+            echo "PYENV_BOOTSTRAP_VERSION=$PYENV_BOOTSTRAP_VERSION" >> $GITHUB_ENV
+            pyenv install $PYENV_BOOTSTRAP_VERSION
+          fi
+      - run: |
+          #build
+          pyenv --debug install ${{ matrix.python-version }} && rc=$? || rc=$?
+          if [[ $rc -ne 0 ]]; then echo config.log:; cat $TMPDIR/python-build*/*/config.log; false; fi
+          pyenv global ${{ matrix.python-version }}
+      # Micropython doesn't support --version
+      - run: |
+          #print version
+          if [[ "${{ matrix.python-version }}" == "micropython-"* ]]; then
+            python -c 'import sys; print(sys.version)'
+          else
+            python --version
+            python -m pip --version
+          fi
+      # Micropython doesn't support sys.executable, os.path, older versions even os
+      - env:
+          EXPECTED_PYTHON: ${{ matrix.python-version }}
+        run: |
+          #check
+          if [[ "${{ matrix.python-version }}" == "micropython-"* ]]; then
+            [[ $(pyenv which python) == "${{ env.PYENV_ROOT }}/versions/${{ matrix.python-version }}/bin/python" ]] || exit 1
+            python -c 'import sys; assert sys.implementation.name == "micropython"'
+          else
+            python -c 'if True:
+            import os, sys, os.path
+            correct_dir = os.path.join(
+              os.environ["PYENV_ROOT"],
+              "versions",
+              os.environ["EXPECTED_PYTHON"],
+              "bin")
+            assert os.path.dirname(sys.executable) == correct_dir'
+          fi
+      # bundled executables in some Anaconda releases cause the post-run step to hang in MacOS
+      - run: |
+          pyenv global system
+          rm -f "$(pyenv root)"/shims/*
+
+  macos_build_bundled_dependencies:
+    needs: discover_modified_scripts
+    if: needs.discover_modified_scripts.outputs.versions_cpython_only != '[""]'
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ${{fromJson(needs.discover_modified_scripts.outputs.versions_cpython_only)}}
+        os: ["macos-13", "macos-14", "macos-15"]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v5
+      - run: |
+          #envvars
+          export PYENV_ROOT="$GITHUB_WORKSPACE"
+          echo "PYENV_ROOT=$PYENV_ROOT" >> $GITHUB_ENV
+          echo "$PYENV_ROOT/shims:$PYENV_ROOT/bin" >> $GITHUB_PATH
+      - run: |
+          #prerequisites
+          brew install sqlite3 xz zlib
+          "$GITHUB_WORKSPACE/.github/workflows/scripts/brew-uninstall-cascade.sh" openssl@3 openssl@1.1 readline
+          if [[ "${{ matrix.python-version }}" =~ pypy.*-(src|dev) ]]; then
+            export PYENV_BOOTSTRAP_VERSION=pypy2.7-7
+            echo "PYENV_BOOTSTRAP_VERSION=$PYENV_BOOTSTRAP_VERSION" >> $GITHUB_ENV
+            pyenv install $PYENV_BOOTSTRAP_VERSION
+          fi
+      - run: |
+          #build
+          pyenv --debug install ${{ matrix.python-version }} && rc=$? || rc=$?
+          if [[ $rc -ne 0 ]]; then echo config.log:; cat $TMPDIR/python-build*/*/config.log; false; fi
+          pyenv global ${{ matrix.python-version }}
+      # Micropython doesn't support --version
+      - run: |
+          #print version
+          if [[ "${{ matrix.python-version }}" == "micropython-"* ]]; then
+            python -c 'import sys; print(sys.version)'
+          else
+            python --version
+            python -m pip --version
+          fi
+      # Micropython doesn't support sys.executable, os.path, older versions even os
+      - env:
+          EXPECTED_PYTHON: ${{ matrix.python-version }}
+        run: |
+          #check
+          if [[ "${{ matrix.python-version }}" == "micropython-"* ]]; then
+            [[ $(pyenv which python) == "${{ env.PYENV_ROOT }}/versions/${{ matrix.python-version }}/bin/python" ]] || exit 1
+            python -c 'import sys; assert sys.implementation.name == "micropython"'
+          else
+            python -c 'if True:
+            import os, sys, os.path
+            correct_dir = os.path.join(
+              os.environ["PYENV_ROOT"],
+              "versions",
+              os.environ["EXPECTED_PYTHON"],
+              "bin")
+            assert os.path.dirname(sys.executable) == correct_dir'
+          fi
+      # bundled executables in some Anaconda releases cause the post-run step to hang in MacOS
+      - run: |
+          pyenv global system
+          rm -f "$(pyenv root)"/shims/*
+
+  ubuntu_build:
+    needs: discover_modified_scripts
+    if: needs.discover_modified_scripts.outputs.versions != '[""]'
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ${{fromJson(needs.discover_modified_scripts.outputs.versions)}}
+        os: ["ubuntu-22.04", "ubuntu-24.04"]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v5
+      - run: |
+          #envvars
+          export PYENV_ROOT="$GITHUB_WORKSPACE"
+          echo "PYENV_ROOT=$PYENV_ROOT" >> $GITHUB_ENV
+          echo "$PYENV_ROOT/shims:$PYENV_ROOT/bin" >> $GITHUB_PATH
+      - run: |
+          #prerequisites
+          sudo apt-get update -q; sudo apt-get install -yq make build-essential \
+            libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev \
+            curl llvm libncurses5-dev libncursesw5-dev \
+            xz-utils tk-dev libffi-dev liblzma-dev
+          if [[ "${{ matrix.python-version }}" =~ pypy.*-(src|dev) ]]; then
+            export PYENV_BOOTSTRAP_VERSION=pypy2.7-7
+            echo "PYENV_BOOTSTRAP_VERSION=$PYENV_BOOTSTRAP_VERSION" >> $GITHUB_ENV
+            pyenv install $PYENV_BOOTSTRAP_VERSION
+          fi
+      - run: |
+          #build
+          pyenv --debug install ${{ matrix.python-version }} && rc=$? || rc=$?
+          if [[ $rc -ne 0 ]]; then echo config.log:; cat $TMPDIR/python-build*/*/config.log; false; fi
+          pyenv global ${{ matrix.python-version }}
+      # Micropython doesn't support --version
+      - run: |
+          #print version
+          if [[ "${{ matrix.python-version }}" == "micropython-"* ]]; then
+            python -c 'import sys; print(sys.version)'
+          else
+            python --version
+            python -m pip --version
+          fi
+      # Micropython doesn't support sys.executable, os.path, older versions even os
+      - env:
+          EXPECTED_PYTHON: ${{ matrix.python-version }}
+        run: |
+          #check
+          if [[ "${{ matrix.python-version }}" == "micropython-"* ]]; then
+            [[ $(pyenv which python) == "${{ env.PYENV_ROOT }}/versions/${{ matrix.python-version }}/bin/python" ]] || exit 1
+            python -c 'import sys; assert sys.implementation.name == "micropython"'
+          else
+            python -c 'if True:
+            import os, sys, os.path
+            correct_dir = os.path.join(
+              os.environ["PYENV_ROOT"],
+              "versions",
+              os.environ["EXPECTED_PYTHON"],
+              "bin")
+            assert os.path.dirname(sys.executable) == correct_dir'
+          fi
+  ubuntu_build_tar_gz:
+    needs: discover_modified_scripts
+    if: needs.discover_modified_scripts.outputs.versions_cpython_only != '[""]'
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ${{fromJson(needs.discover_modified_scripts.outputs.versions_cpython_only)}}
+        os: ["ubuntu-latest"]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v5
+      - run: |
+          #envvars
+          export PYENV_ROOT="$GITHUB_WORKSPACE"
+          echo "PYENV_ROOT=$PYENV_ROOT" >> $GITHUB_ENV
+          echo "$PYENV_ROOT/shims:$PYENV_ROOT/bin" >> $GITHUB_PATH
+          echo "_PYTHON_BUILD_FORCE_SKIP_XZ=1" >> $GITHUB_PATH
+      - run: |
+          #prerequisites
+          sudo apt-get update -q; sudo apt-get install -yq make build-essential \
+            libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev \
+            curl llvm libncurses5-dev libncursesw5-dev \
+            xz-utils tk-dev libffi-dev liblzma-dev
+          if [[ "${{ matrix.python-version }}" =~ pypy.*-(src|dev) ]]; then
+            export PYENV_BOOTSTRAP_VERSION=pypy2.7-7
+            echo "PYENV_BOOTSTRAP_VERSION=$PYENV_BOOTSTRAP_VERSION" >> $GITHUB_ENV
+            pyenv install $PYENV_BOOTSTRAP_VERSION
+          fi
+      - run: |
+          #build
+          pyenv --debug install ${{ matrix.python-version }} && rc=$? || rc=$?
+          if [[ $rc -ne 0 ]]; then echo config.log:; cat $TMPDIR/python-build*/*/config.log; false; fi
+          pyenv global ${{ matrix.python-version }}
+      # Micropython doesn't support --version
+      - run: |
+          #print version
+          if [[ "${{ matrix.python-version }}" == "micropython-"* ]]; then
+            python -c 'import sys; print(sys.version)'
+          else
+            python --version
+            python -m pip --version
+          fi
+      # Micropython doesn't support sys.executable, os.path, older versions even os
+      - env:
+          EXPECTED_PYTHON: ${{ matrix.python-version }}
+        run: |
+          #check
+          if [[ "${{ matrix.python-version }}" == "micropython-"* ]]; then
+            [[ $(pyenv which python) == "${{ env.PYENV_ROOT }}/versions/${{ matrix.python-version }}/bin/python" ]] || exit 1
+            python -c 'import sys; assert sys.implementation.name == "micropython"'
+          else
+            python -c 'if True:
+            import os, sys, os.path
+            correct_dir = os.path.join(
+              os.environ["PYENV_ROOT"],
+              "versions",
+              os.environ["EXPECTED_PYTHON"],
+              "bin")
+            assert os.path.dirname(sys.executable) == correct_dir'
+          fi

.github/workflows/no-response.yml

@@ -0,0 +1,30 @@
+name: No Response
+
+# Both `issue_comment` and `scheduled` event types are required for this Action
+# to work properly.
+on:
+  issue_comment:
+    types: [created]
+  schedule:
+    # Schedule for ten minutes after the hour, every hour
+    - cron: '10 * * * *'
+
+permissions: {}
+jobs:
+  noResponse:
+    permissions:
+      issues: write  #  to update issues (lee-dohm/no-response)
+
+    runs-on: ubuntu-latest
+    steps:
+      - uses: lee-dohm/no-response@v0.5.0
+        with:
+          token: ${{ github.token }}
+          daysUntilClose: 30
+          responseRequiredLabel: need-feedback
+          closeComment: >
+              This issue has been automatically closed because there has been no response
+              to our request for more information from the original author. With only the
+              information that is currently in the issue, we don't have enough information
+              to take action. Please reach out if you have or find the answers we need so
+              that we can investigate further.

.github/workflows/pyenv_tests.yml

@@ -0,0 +1,54 @@
+name: pyenv_tests
+on: [pull_request, push]
+
+permissions:
+  contents: read  #  to fetch code (actions/checkout)
+
+jobs:
+  pyenv_tests:
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-24.04
+          - ubuntu-22.04
+          - macos-14
+          - macos-13
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v5
+      # Normally, we would use the superbly maintained...
+      # - uses: actions/setup-python@v2
+      #   with:
+      #    python-version: ${{ matrix.python-version }}
+      # ... but in the repo, we want to test pyenv builds on Ubuntu
+      # - run: |
+          # sudo apt-get install -y build-essential libssl-dev zlib1g-dev libbz2-dev \
+              # libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev \
+              # xz-utils tk-dev libffi-dev liblzma-dev python-openssl git
+      # https://github.com/pyenv/pyenv#installation
+      - run: |
+          if test "$RUNNER_OS" == "macOS"; then
+            brew install coreutils fish
+          elif [[ $(lsb_release -sr | awk -F. '{print $1}') -ge 20 ]]; then
+            # Ubuntu 18 has fish 2 which lacks many features that facilitate testing
+            sudo apt install fish -yq
+          fi
+      - run: pwd
+      - env:
+          PYENV_ROOT: /home/runner/work/pyenv/pyenv
+        run: |
+          echo $PYENV_ROOT
+          echo "$PYENV_ROOT/shims:$PYENV_ROOT/bin" >> $GITHUB_PATH
+      - name: Run test on the host
+        run: |
+          make test
+      - name: Run test with docker
+        if: ${{ ! contains(matrix.os, 'macos') }}
+        run: |
+          make test-docker
+      - env:
+          PYENV_NATIVE_EXT: 1
+        run: |
+          (cd src; ./configure; make)
+          bats/bin/bats test/{pyenv,hooks,versions}.bats

.github/workflows/scripts/brew-uninstall-cascade.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+declare -a packages rdepends
+packages=("$@")
+
+# have to try one by one, otherwise `brew uses` would only print
+# packages that require them all rather than any of them
+for package in "${packages[@]}"; do
+  rdepends+=($(brew uses --installed --include-build --include-test --include-optional --recursive "$package"))
+done
+brew uninstall "${packages[@]}" "${rdepends[@]}"

.github/workflows/ubuntu_build.yml

@@ -0,0 +1,45 @@
+name: ubuntu_build
+on: [pull_request, push]
+
+permissions:
+  contents: read  #  to fetch code (actions/checkout)
+
+jobs:
+  ubuntu_build:
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version:
+          - "3.9"
+          - "3.10"
+          - "3.11"
+          - "3.12"
+          - "3.13"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+      # Normally, we would use the superbly maintained...
+      # - uses: actions/setup-python@v2
+      #   with:
+      #    python-version: ${{ matrix.python-version }}
+      # ... but in the repo, we want to test pyenv builds on Ubuntu
+      - run: |
+          sudo apt-get update -q; sudo apt install -yq make build-essential libssl-dev zlib1g-dev \
+          libbz2-dev libreadline-dev libsqlite3-dev curl \
+          libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev
+      # https://github.com/pyenv/pyenv#installation
+      - run: pwd
+      - env:
+          PYENV_ROOT: /home/runner/work/pyenv/pyenv
+        run: |
+          echo $PYENV_ROOT
+          echo "$PYENV_ROOT/shims:$PYENV_ROOT/bin" >> $GITHUB_PATH
+          bin/pyenv --debug install ${{ matrix.python-version }}
+          bin/pyenv global ${{ matrix.python-version }}
+          bin/pyenv rehash
+      - run: python --version
+      - run: python -m pip --version
+      - shell: python  # Prove that actual Python == expected Python
+        env:
+          EXPECTED_PYTHON: ${{ matrix.python-version }}
+        run: import os, sys ; assert sys.version.startswith(os.getenv("EXPECTED_PYTHON"))

.gitignore

@@ -1,4 +1,13 @@
-#/plugins
 /shims
 /version
 /versions
+/sources
+/cache
+/libexec/*.dylib
+/src/Makefile
+/src/*.o
+/bats
+/bats-*/
+/default-packages
+.idea
+*.un~

.vimrc

@@ -0,0 +1 @@
+set wildignore+=versions/*,cache/*

COMMANDS.md

@@ -0,0 +1,412 @@
+# Command Reference
+
+Like `git`, the `pyenv` command delegates to subcommands based on its
+first argument.
+
+The most common subcommands are:
+
+* [`pyenv help`](#pyenv-help)
+* [`pyenv commands`](#pyenv-commands)
+* [`pyenv local`](#pyenv-local)
+* [`pyenv global`](#pyenv-global)
+* [`pyenv shell`](#pyenv-shell)
+* [`pyenv install`](#pyenv-install)
+* [`pyenv uninstall`](#pyenv-uninstall)
+* [`pyenv rehash`](#pyenv-rehash)
+* [`pyenv version`](#pyenv-version)
+* [`pyenv versions`](#pyenv-versions)
+* [`pyenv which`](#pyenv-which)
+* [`pyenv whence`](#pyenv-whence)
+* [`pyenv exec`](#pyenv-exec)
+* [`pyenv root`](#pyenv-root)
+* [`pyenv prefix`](#pyenv-prefix)
+* [`pyenv latest`](#pyenv-latest)
+* [`pyenv hooks`](#pyenv-hooks)
+* [`pyenv shims`](#pyenv-shims)
+* [`pyenv init`](#pyenv-init)
+* [`pyenv completions`](#pyenv-completions)
+
+## `pyenv help`
+
+List all available pyenv commands along with a brief description of what they do. Run `pyenv help <command>` for information on a specific command. For full documentation, see: https://github.com/pyenv/pyenv#readme
+
+
+## `pyenv commands`
+
+Lists all available pyenv commands.
+
+
+## `pyenv local`
+
+Sets a local application-specific Python version by writing the version
+name to a `.python-version` file in the current directory. This version
+overrides the global version, and can be overridden itself by setting
+the `PYENV_VERSION` environment variable or with the `pyenv shell`
+command.
+
+    $ pyenv local 2.7.6
+
+When run without a version number, `pyenv local` reports the currently
+configured local version. You can also unset the local version:
+
+    $ pyenv local --unset
+
+Previous versions of pyenv stored local version specifications in a
+file named `.pyenv-version`. For backwards compatibility, pyenv will
+read a local version specified in an `.pyenv-version` file, but a
+`.python-version` file in the same directory will take precedence.
+
+
+### `pyenv local` (advanced)
+
+You can specify multiple versions as local Python at once.
+
+Let's say if you have two versions of 2.7.6 and 3.3.3. If you prefer 2.7.6 over 3.3.3,
+
+    $ pyenv local 2.7.6 3.3.3
+    $ pyenv versions
+      system
+    * 2.7.6 (set by /Users/yyuu/path/to/project/.python-version)
+    * 3.3.3 (set by /Users/yyuu/path/to/project/.python-version)
+    $ python --version
+    Python 2.7.6
+    $ python2.7 --version
+    Python 2.7.6
+    $ python3.3 --version
+    Python 3.3.3
+
+or, if you prefer 3.3.3 over 2.7.6,
+
+    $ pyenv local 3.3.3 2.7.6
+    $ pyenv versions
+      system
+    * 2.7.6 (set by /Users/yyuu/path/to/project/.python-version)
+    * 3.3.3 (set by /Users/yyuu/path/to/project/.python-version)
+      venv27
+    $ python --version
+    Python 3.3.3
+    $ python2.7 --version
+    Python 2.7.6
+    $ python3.3 --version
+    Python 3.3.3
+
+
+You can use the `-f/--force` flag to force setting versions even if some aren't installed.
+This is mainly useful in special cases like provisioning scripts.
+
+
+## `pyenv global`
+
+Sets the global version of Python to be used in all shells by writing
+the version name to the `~/.pyenv/version` file. This version can be
+overridden by an application-specific `.python-version` file, or by
+setting the `PYENV_VERSION` environment variable.
+
+    $ pyenv global 2.7.6
+
+The special version name `system` tells pyenv to use the system Python
+(detected by searching your `$PATH`).
+
+When run without a version number, `pyenv global` reports the
+currently configured global version.
+
+
+### `pyenv global` (advanced)
+
+You can specify multiple versions as global Python at once.
+
+Let's say if you have two versions of 2.7.6 and 3.3.3. If you prefer 2.7.6 over 3.3.3,
+
+    $ pyenv global 2.7.6 3.3.3
+    $ pyenv versions
+      system
+    * 2.7.6 (set by /Users/yyuu/.pyenv/version)
+    * 3.3.3 (set by /Users/yyuu/.pyenv/version)
+    $ python --version
+    Python 2.7.6
+    $ python2.7 --version
+    Python 2.7.6
+    $ python3.3 --version
+    Python 3.3.3
+
+or, if you prefer 3.3.3 over 2.7.6,
+
+    $ pyenv global 3.3.3 2.7.6
+    $ pyenv versions
+      system
+    * 2.7.6 (set by /Users/yyuu/.pyenv/version)
+    * 3.3.3 (set by /Users/yyuu/.pyenv/version)
+      venv27
+    $ python --version
+    Python 3.3.3
+    $ python2.7 --version
+    Python 2.7.6
+    $ python3.3 --version
+    Python 3.3.3
+
+
+## `pyenv shell`
+
+Sets a shell-specific Python version by setting the `PYENV_VERSION`
+environment variable in your shell. This version overrides
+application-specific versions and the global version.
+
+    $ pyenv shell pypy-2.2.1
+
+When run without a version number, `pyenv shell` reports the current
+value of `PYENV_VERSION`. You can also unset the shell version:
+
+    $ pyenv shell --unset
+
+Note that you'll need pyenv's shell integration enabled (step 3 of
+the installation instructions) in order to use this command. If you
+prefer not to use shell integration, you may simply set the
+`PYENV_VERSION` variable yourself:
+
+    $ export PYENV_VERSION=pypy-2.2.1
+
+
+### `pyenv shell` (advanced)
+
+You can specify multiple versions via `PYENV_VERSION` at once.
+
+Let's say if you have two versions of 2.7.6 and 3.3.3. If you prefer 2.7.6 over 3.3.3,
+
+    $ pyenv shell 2.7.6 3.3.3
+    $ pyenv versions
+      system
+    * 2.7.6 (set by PYENV_VERSION environment variable)
+    * 3.3.3 (set by PYENV_VERSION environment variable)
+    $ python --version
+    Python 2.7.6
+    $ python2.7 --version
+    Python 2.7.6
+    $ python3.3 --version
+    Python 3.3.3
+
+or, if you prefer 3.3.3 over 2.7.6,
+
+    $ pyenv shell 3.3.3 2.7.6
+    $ pyenv versions
+      system
+    * 2.7.6 (set by PYENV_VERSION environment variable)
+    * 3.3.3 (set by PYENV_VERSION environment variable)
+      venv27
+    $ python --version
+    Python 3.3.3
+    $ python2.7 --version
+    Python 2.7.6
+    $ python3.3 --version
+    Python 3.3.3
+
+
+## `pyenv install`
+
+Install a Python version (using [`python-build`](https://github.com/pyenv/pyenv/tree/master/plugins/python-build)).
+
+    Usage: pyenv install [-f] [-kvp] <version>
+           pyenv install [-f] [-kvp] <definition-file>
+           pyenv install -l|--list
+
+      -l/--list             List all available versions
+      -f/--force            Install even if the version appears to be installed already
+      -s/--skip-existing    Skip the installation if the version appears to be installed already
+
+      python-build options:
+
+      -k/--keep        Keep source tree in $PYENV_BUILD_ROOT after installation
+                       (defaults to $PYENV_ROOT/sources)
+      -v/--verbose     Verbose mode: print compilation status to stdout
+      -p/--patch       Apply a patch from stdin before building
+      -g/--debug       Build a debug version
+
+To list the all available versions of Python, including Anaconda, Jython, pypy, and stackless, use:
+
+    $ pyenv install --list
+
+Then install the desired versions:
+
+    $ pyenv install 2.7.6
+    $ pyenv install 2.6.8
+    $ pyenv versions
+      system
+      2.6.8
+    * 2.7.6 (set by /home/yyuu/.pyenv/version)
+
+You can also install the latest version of Python in a specific version line by supplying a prefix instead of a complete name:
+
+    $ pyenv install 3.10
+
+See the [`pyenv latest` documentation](#pyenv-latest) for details on prefix resolution.
+
+An older option is to use the `:latest` syntax. For example, to install the latest patch version for Python 3.8 you could do:
+
+    pyenv install 3.8:latest
+
+To install the latest major release for Python 3 try:
+
+    pyenv install 3:latest
+
+## `pyenv uninstall`
+
+Uninstall Python versions.
+
+    Usage: pyenv uninstall [-f|--force] <version> ...
+
+       -f  Attempt to remove the specified version without prompting
+           for confirmation. If the version does not exist, do not
+           display an error message.
+
+
+## `pyenv rehash`
+
+Installs shims for all Python binaries known to pyenv (i.e.,
+`~/.pyenv/versions/*/bin/*`). Run this command after you install a new
+version of Python, or install a package that provides binaries.
+
+    $ pyenv rehash
+
+
+## `pyenv version`
+
+Displays the currently active Python version, along with information on
+how it was set.
+
+    Usage: pyenv version [--bare]
+
+    --bare    show just the version name. An alias to `pyenv version-name'
+
+
+    $ pyenv version
+    2.7.6 (set by /home/yyuu/.pyenv/version)
+    $ pyenv version --bare
+    2.7.6
+
+
+## `pyenv versions`
+
+Lists all Python versions known to pyenv, and shows an asterisk next to
+the currently active version.
+
+    $ pyenv versions
+      2.5.6
+      2.6.8
+    * 2.7.6 (set by /home/yyuu/.pyenv/version)
+      3.3.3
+      jython-2.5.3
+      pypy-2.2.1
+
+
+## `pyenv which`
+
+Displays the full path to the executable that pyenv will invoke when
+you run the given command.
+
+    $ pyenv which python3.3
+    /home/yyuu/.pyenv/versions/3.3.3/bin/python3.3
+
+Use --nosystem argument in case when you don't need to search command in the 
+system environment.
+
+## `pyenv whence`
+
+Lists all Python versions with the given command installed.
+
+    $ pyenv whence 2to3
+    2.6.8
+    2.7.6
+    3.3.3
+
+## `pyenv exec`
+
+    Usage: pyenv exec <command> [arg1 arg2...]
+
+Runs an executable by first preparing PATH so that the selected Python
+version's `bin` directory is at the front.
+
+For example, if the currently selected Python version is 3.9.7:
+
+    pyenv exec pip install -r requirements.txt
+    
+is equivalent to:
+
+    PATH="$PYENV_ROOT/versions/3.9.7/bin:$PATH" pip install -r requirements.txt
+
+## `pyenv root`
+
+Displays the root directory where versions and shims are kept.
+
+    $ pyenv root
+    /home/user/.pyenv
+
+## `pyenv prefix`
+
+Displays the directories where the given Python versions are installed,
+separated by colons. If no version is given, `pyenv prefix` displays the
+locations of the currently selected versions.
+
+    $ pyenv prefix 3.9.7
+    /home/user/.pyenv/versions/3.9.7
+
+## `pyenv latest`
+
+Displays the latest installed or known version with the given prefix
+
+    Usage: pyenv latest [-k|--known] [-q|--quiet] <prefix>
+
+     -k/--known      Select from all known versions instead of installed
+     -q/--quiet      Do not print an error message on resolution failure
+
+Only full prefixes are searched: in the actual name, the given prefix must be followed by a dot or a dash.
+
+Prereleases and versions with specific suffixes (e.g. `-src`) are ignored.
+
+## `pyenv hooks`
+
+Lists installed hook scripts for a given pyenv command.
+
+    Usage: pyenv hooks <command>
+
+## `pyenv shims`
+
+List existing pyenv shims.
+
+    Usage: pyenv shims [--short]
+
+    $ pyenv shims
+    /home/user/.pyenv/shims/2to3
+    /home/user/.pyenv/shims/2to3-3.9
+    /home/user/.pyenv/shims/idle
+    /home/user/.pyenv/shims/idle3
+    /home/user/.pyenv/shims/idle3.9
+    /home/user/.pyenv/shims/pip
+    /home/user/.pyenv/shims/pip3
+    /home/user/.pyenv/shims/pip3.9
+    /home/user/.pyenv/shims/pydoc
+    /home/user/.pyenv/shims/pydoc3
+    /home/user/.pyenv/shims/pydoc3.9
+    /home/user/.pyenv/shims/python
+    /home/user/.pyenv/shims/python3
+    /home/user/.pyenv/shims/python3.9
+    /home/user/.pyenv/shims/python3.9-config
+    /home/user/.pyenv/shims/python3.9-gdb.py
+    /home/user/.pyenv/shims/python3-config
+    /home/user/.pyenv/shims/python-config
+
+## `pyenv init`
+
+Configure the shell environment for pyenv
+
+    Usage: eval "$(pyenv init [-|--path] [--no-push-path] [--no-rehash] [<shell>])"
+
+      -                    Initialize shims directory, print PYENV_SHELL variable, completions path
+                           and shell function
+      --path               Print shims path
+      --no-push-path       Do not push shim to the start of PATH if they're already there
+      --no-rehash          Add no rehash command to output     
+
+## `pyenv completions`
+
+Lists available completions for a given pyenv command.
+
+    Usage: pyenv completions <command> [arg1 arg2...]

CONDUCT.md

@@ -0,0 +1,80 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, gender identity and expression, level of experience,
+nationality, personal appearance, race, religion, or sexual identity and
+orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting one of the project maintainers listed below. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Project Maintainers
+
+* Yamashita, Yuu <<peek824545201@gmail.com>>
+* Daniel Hahler <<git@thequod.de>>
+* Josh Friend <<josh@fueledbycaffeine.com>>
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at [http://contributor-covenant.org/version/1/4][version]
+
+[homepage]: http://contributor-covenant.org
+[version]: http://contributor-covenant.org/version/1/4/

CONTRIBUTING.md

@@ -0,0 +1,103 @@
+General guidance
+================
+
+* The usual principles of respecting existing conventions and making sure that your changes
+  are in line with the overall product design apply when contributing code to Pyenv.
+
+* We are limited to Bash 3.2 features
+
+  That's because that's the version shipped with MacOS.
+  (They didn't upgrade past it and switched to Zsh because later versions
+  are covered by GPLv3 which has additional restrictions unacceptable for Apple.)
+
+  You can still add performance optimizations etc that take advantage of newer Bash features
+  as long as there is a fallback execution route for Bash 3.
+
+Formatting PRs
+==============
+
+We strive to keep commit history one-concern-per-commit to keep it meaningful and easy to follow.
+If a pull request (PR) addresses a single concern (the typical case), we usually squash commits
+from it together when merging so its commit history doesn't matter.
+If however a PR addresses multiple separate concerns, each of them should be presented as a separate commit.
+Adding multiple new Python releases of the same flavor is okay with either a single or multiple commits.
+
+
+Authoring installation scripts
+==============================
+
+Adding new Python release support
+---------------------------------
+
+The easiest way to add support for a new Python release is to copy the script from the previous one
+and adjust it as necessary. In many cases, just changing version numbers, URLs and hashes is enough.
+Do pay attention to other "magic numbers" that may be present in a script --
+e.g. the set of architectures and OS versions supported by a release -- since those change from time to time, too.
+
+Make sure to also copy any patches for the previous release that still apply to the new one.
+Typically, a patch no longer applies if it addresses a problem that's already fixed in the new release.
+
+For prereleases, we only create an entry for the latest prerelease in a specific version line.
+When submitting a newer prerelease, replace the older one.
+
+
+Adding version-specific fixes/patches
+-------------------------------------
+
+We accept fixes to issues in specific Python releases that prevent users from using them with Pyenv.
+
+In the default configuration for a Python release, we strive to provide as close to vanilla experience as practical,
+to maintain [the principle of the least surprise](https://en.wikipedia.org/wiki/Principle_of_least_astonishment).
+As such, any such fixes:
+
+* Must not break or degrade (e.g. disable features) the build in any of the environments that the release officially supports
+* Must not introduce incompatibilities with the vanilla release (including binary incompatibilities)
+* Should not patch things unnecessarily, to minimize the risk of the aforementioned undesirable side effects.
+  * E.g. if the fix is for a specific environment, its logic ought to only fire in this specific environment and not touch execution paths for other environments.
+  * As such, it's advisable to briefly explain in the PR what each added patch does and why it is necessary to fix the declared problem
+
+Generally, version-specific fixes belong in the scripts for the affected releases and/or patches for them -- this guarantees that their effect is limited to only those releases.
+
+<h3>Backporting upstream patches</h3>
+
+Usually, this is the easiest way to backport a fix for a problem that is fixed in a newer release.
+
+* Clone Python, check out the tag for the appropriate release and create a branch
+* Apply existing patches if there are any (with either `patch` or `git am`) and commit
+* Cherry-pick the upstream commit that fixes the problem in a newer release
+* Commit and `git format-patch`
+* Commit the generated patch file into Pyenv, test your changes and submit a PR
+
+
+Deprecation policy
+------------------
+
+We do not provide official support for EOL releases and environments or otherwise provide any kind of extended support for old Python releases.
+
+We do however accept fixes from interested parties that would allow running older, including EOL, releases in environments that they do not officially support.
+In addition to the above requirements for release-specific fixes,
+
+* Such a fix must not add maintenance burden (e.g. add new logic to `python-build` that has to be kept there indefinitely)
+  * Unless the added logic is useful for both EOL and non-EOL releases. In this case, it will be considered as being primarily an improvement for non-EOL releases.
+* Support is provided on a "best effort" basis: we do not actively maintain these fixes but won't actively break them, either, and will accept any corrections.
+  Since old releases never change, it's pretty safe to assume that the fixes will continue to work until a later version
+  of an environment introduces further incompatible changes.
+
+
+Advanced changes / adding new Python flavor support
+---------------------------------------------------
+
+An installation script is sourced from `python-build`. All installation scripts are based on the same logic:
+
+1. Select the source to download and other variable parameters as needed.
+
+   This includes showing an error if the user's environment (OS, architecture) is not supported by the release.
+   Binary releases that only officially support specific distro(s) typically show a warning in other distros instead.
+
+2. Run one of the `install_*` shell functions
+
+`install_*` shell functions defined in `python-build` install Python from different kinds of sources -- compressed package (binary or source), upstream installation script, VCS checkout. Pick one that's the most appropriate for your packaging.
+
+Each of them accepts a couple of function-specific arguments which are followed by arguments that constitute the build sequence. Each `<argument>` in the build sequence corresponds to the `install_*_<argument>` function in `python-build`. Check what's available and add any functions with logic specific to your flavor if needed.
+
+We strive to keep out of `python-build` parts of build logic that are release-specific and/or tend to change abruptly between releases -- e.g. sets of supported architectures and other software's versions. This results in logic duplication between installation scripts -- but since old releases never change once released, this doesn't really add to the maintenance burden. As a rule of thumb, `python-build` can host parts of logic that are expected to stay the same for an indefinite amount of time -- for an entire Python flavor or release line.

LICENSE

@@ -1,5 +1,5 @@
-Copyright (c) 2011 Sam Stephenson
-Copyright (c) 2012 Yamashita, Yuu
+Copyright (c) 2013 Yamashita, Yuu
+Copyright (c) 2013 Sam Stephenson
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

MAINTENANCE.md

@@ -0,0 +1,17 @@
+Creating a release
+==================
+
+The release of the new version of Pyenv is done via GitHub Releases.
+
+Release checklist:
+* Start [drafting a new release on GitHub](https://github.com/pyenv/pyenv/releases) to generate a summary of changes.  
+Type the would-be tag name in the "Choose a tag" field and press "Generate release notes"
+  * The summary may need editing. E.g. rephrase entries, delete/merge entries that are too minor or irrelevant to the users (e.g. typo fixes, CI)
+* Update `CHANGELOG.md` with the new version number and the edited summary (only the changes section)
+* Push the version number in `libexec/pyenv---version` and `plugins/python-build/bin/python-build`
+  * Minor version is pushed if there are significant functional changes (not e.g. bugfixes/formula adaptations/supporting niche use cases).
+  * Major version is pushed if there are breaking changes
+* Commit the changes locally into `master`
+* Create a new tag locally with the same name as specified in the new release window
+* Push the changes including the tag
+* In the still open new release window, press "Publish release". The now-existing tag will be used.

Makefile

@@ -0,0 +1,119 @@
+TEST_BATS_VERSION = v1.10.0
+TEST_BASH_VERSIONS = 3.2.57 4.1.17
+TEST_UNIT_DOCKER_PREFIX = test-unit-docker
+TEST_UNIT_DOCKER_TARGETS = $(foreach bash,$(TEST_BASH_VERSIONS),$(addsuffix -$(bash),$(TEST_UNIT_DOCKER_PREFIX)) $(addsuffix -gnu-$(bash),$(TEST_UNIT_DOCKER_PREFIX)))
+TEST_PLUGIN_DOCKER_PREFIX = test-plugin-docker
+TEST_PLUGIN_DOCKER_TARGETS = $(foreach bash,$(TEST_BASH_VERSIONS),$(addsuffix -$(bash),$(TEST_PLUGIN_DOCKER_PREFIX)) $(addsuffix -gnu-$(bash),$(TEST_PLUGIN_DOCKER_PREFIX)))
+TEST_BATS_IMAGE_PREFIX = test-pyenv-docker-image
+TEST_BATS_IMAGE_TARGETS = $(foreach bash,$(TEST_BASH_VERSIONS),$(addsuffix -$(bash),$(TEST_BATS_IMAGE_PREFIX)) $(addsuffix -gnu-$(bash),$(TEST_BATS_IMAGE_PREFIX)))
+
+.PHONY:
+test-docker: $(TEST_UNIT_DOCKER_PREFIX) $(TEST_PLUGIN_DOCKER_PREFIX)
+
+# Run all unit test under bats docker
+.PHONY: $(TEST_UNIT_DOCKER_PREFIX)
+$(TEST_UNIT_DOCKER_PREFIX): $(TEST_UNIT_DOCKER_TARGETS)
+
+# Run each unit test under bats docker
+.PHONY: $(TEST_UNIT_DOCKER_TARGETS)
+$(TEST_UNIT_DOCKER_TARGETS): DOCKER_IMAGE = $(TEST_BATS_IMAGE_PREFIX)
+$(TEST_UNIT_DOCKER_TARGETS): GNU = $(if $(findstring -gnu-,$@),True,False)
+$(TEST_UNIT_DOCKER_TARGETS): BASH = $(filter $(TEST_BASH_VERSIONS),$(subst -, ,$@))
+$(TEST_UNIT_DOCKER_TARGETS): DOCKER_TAG = bash-$(BASH)-gnu-$(GNU)
+$(TEST_UNIT_DOCKER_TARGETS): INTERACTIVE = $(if $(findstring true,$(CI)),,-ti)
+$(TEST_UNIT_DOCKER_TARGETS): $(TEST_UNIT_DOCKER_PREFIX)-% : $(TEST_BATS_IMAGE_PREFIX)-%
+	$(info Running test with docker image '$(DOCKER_IMAGE):$(DOCKER_TAG)')
+	docker run \
+		--init \
+		-v $(PWD):/code:ro \
+		-v /etc/passwd:/etc/passwd:ro \
+		-v /etc/group:/etc/group:ro \
+		-u "$$(id -u $$(whoami)):$$(id -g $$(whoami))" \
+		$${BATS_TEST_FILTER:+-e BATS_TEST_FILTER="$${BATS_TEST_FILTER}"} \
+		$${BATS_FILE_FILTER:+-e BATS_FILE_FILTER="$${BATS_FILE_FILTER}"} \
+	        $${CI+-e CI="$${CI}"} \
+	        $(INTERACTIVE) \
+		$(DOCKER_IMAGE):$(DOCKER_TAG) \
+		test/run
+
+# Run all plugin test under bats docker
+.PHONY: $(TEST_PLUGIN_DOCKER_PREFIX)
+$(TEST_PLUGIN_DOCKER_PREFIX): $(TEST_PLUGIN_DOCKER_TARGETS)
+
+# Run each plugin test under bats docker
+.PHONY: $(TEST_PLUGIN_DOCKER_TARGETS)
+$(TEST_PLUGIN_DOCKER_TARGETS): DOCKER_IMAGE = $(TEST_BATS_IMAGE_PREFIX)
+$(TEST_PLUGIN_DOCKER_TARGETS): GNU = $(if $(findstring -gnu-,$@),True,False)
+$(TEST_PLUGIN_DOCKER_TARGETS): BASH = $(filter $(TEST_BASH_VERSIONS),$(subst -, ,$@))
+$(TEST_PLUGIN_DOCKER_TARGETS): DOCKER_TAG = bash-$(BASH)-gnu-$(GNU)
+$(TEST_PLUGIN_DOCKER_TARGETS): INTERACTIVE = $(if $(findstring true,$(CI)),,-ti)
+$(TEST_PLUGIN_DOCKER_TARGETS): $(TEST_PLUGIN_DOCKER_PREFIX)-% : $(TEST_BATS_IMAGE_PREFIX)-%
+	$(info Running test with docker image '$(DOCKER_IMAGE):$(DOCKER_TAG)')
+	docker run \
+		--init \
+		-v $(PWD):/code:ro \
+		-v /etc/passwd:/etc/passwd:ro \
+		-v /etc/group:/etc/group:ro \
+		-u "$$(id -u $$(whoami)):$$(id -g $$(whoami))" \
+	        $${CI+-e CI="$${CI}"} \
+	        $(INTERACTIVE) \
+		$(DOCKER_IMAGE):$(DOCKER_TAG) \
+		bats $${BATS_TEST_FILTER:+--filter "$${BATS_TEST_FILTER}"} plugins/python-build/test/$${BATS_FILE_FILTER}
+
+# Build all images needed for bats under docker
+.PHONY: $(TEST_BATS_IMAGE_PREFIX)
+$(TEST_BATS_IMAGE_PREFIX): $(TEST_BATS_IMAGE_TARGETS)
+
+# Build each image needed for bats under docker
+.PHONY: $(TEST_BATS_IMAGE_TARGETS)
+$(TEST_BATS_IMAGE_TARGETS): DOCKER_IMAGE = $(TEST_BATS_IMAGE_PREFIX)
+$(TEST_BATS_IMAGE_TARGETS): GNU = $(if $(findstring -gnu-,$@),True,False)
+$(TEST_BATS_IMAGE_TARGETS): BASH = $(filter $(TEST_BASH_VERSIONS),$(subst -, ,$@))
+$(TEST_BATS_IMAGE_TARGETS): DOCKER_TAG = bash-$(BASH)-gnu-$(GNU)
+$(TEST_BATS_IMAGE_TARGETS):
+	$(info Building docker image '$(DOCKER_IMAGE):$(DOCKER_TAG)')
+	docker build \
+		--quiet \
+		-f "$(PWD)/test/Dockerfile" \
+		--build-arg GNU="$(GNU)" \
+		--build-arg BASH="$(BASH)" \
+		--build-arg BATS_VERSION="$(TEST_BATS_VERSION)" \
+		-t $(DOCKER_IMAGE):$(DOCKER_TAG) \
+		./
+
+.PHONY: test test-build test-unit test-plugin
+
+# Do not pass in user flags to build tests.
+unexport PYTHON_CFLAGS
+unexport PYTHON_CONFIGURE_OPTS
+
+test: test-unit test-plugin
+
+test-unit: bats
+	PATH="./bats/bin:$$PATH" test/run
+	
+test-plugin: bats
+	cd plugins/python-build && $(PWD)/bats/bin/bats $${CI:+--tap} $${BATS_TEST_FILTER:+--filter "$${BATS_TEST_FILTER}"} test/$${BATS_FILE_FILTER}
+
+PYTHON_BUILD_ROOT := $(CURDIR)/plugins/python-build
+PYTHON_BUILD_OPTS ?= --verbose
+PYTHON_BUILD_VERSION ?= 3.8-dev
+PYTHON_BUILD_TEST_PREFIX ?= $(PYTHON_BUILD_ROOT)/test/build/tmp/dist
+
+test-build:
+	$(RM) -r $(PYTHON_BUILD_TEST_PREFIX)
+	$(PYTHON_BUILD_ROOT)/bin/python-build $(PYTHON_BUILD_OPTS) $(PYTHON_BUILD_VERSION) $(PYTHON_BUILD_TEST_PREFIX)
+	[ -e $(PYTHON_BUILD_TEST_PREFIX)/bin/python ]
+	$(PYTHON_BUILD_TEST_PREFIX)/bin/python -V
+	[ -e $(PYTHON_BUILD_TEST_PREFIX)/bin/pip ]
+	$(PYTHON_BUILD_TEST_PREFIX)/bin/pip -V
+
+.SECONDARY: bats-$(TEST_BATS_VERSION)
+bats-$(TEST_BATS_VERSION):
+	rm -rf bats
+	ln -sf bats-$(TEST_BATS_VERSION) bats
+	git clone --depth 1 --branch $(TEST_BATS_VERSION) https://github.com/bats-core/bats-core.git bats-$(TEST_BATS_VERSION)
+
+.PHONY: bats
+bats: bats-$(TEST_BATS_VERSION)
+	ln -sf bats-$(TEST_BATS_VERSION) bats

bin/python-local-exec

@@ -1,16 +0,0 @@
-#!/usr/bin/env bash
-#
-# `python-local-exec` is a drop-in replacement for the standard Python
-# shebang line:
-#
-#    #!/usr/bin/env python-local-exec
-#
-# Use it for scripts inside a project with an `.pyenv-version`
-# file. When you run the scripts, they'll use the project-specified
-# Python version, regardless of what directory they're run from. Useful
-# for e.g. running project tasks in cron scripts without needing to
-# `cd` into the project first.
-
-set -e
-export PYENV_DIR="${1%/*}"
-exec python "$@"

completions/pyenv.bash

@@ -5,8 +5,10 @@ _pyenv() {
   if [ "$COMP_CWORD" -eq 1 ]; then
     COMPREPLY=( $(compgen -W "$(pyenv commands)" -- "$word") )
   else
-    local command="${COMP_WORDS[1]}"
-    local completions="$(pyenv completions "$command")"
+    local words=("${COMP_WORDS[@]}")
+    unset words[0]
+    unset words[$COMP_CWORD]
+    local completions=$(pyenv completions "${words[@]}")
     COMPREPLY=( $(compgen -W "$completions" -- "$word") )
   fi
 }

completions/pyenv.fish

@@ -0,0 +1,23 @@
+function __fish_pyenv_needs_command
+  set cmd (commandline -opc)
+  if [ (count $cmd) -eq 1 -a $cmd[1] = 'pyenv' ]
+    return 0
+  end
+  return 1
+end
+
+function __fish_pyenv_using_command
+  set cmd (commandline -opc)
+  if [ (count $cmd) -gt 1 ]
+    if [ $argv[1] = $cmd[2] ]
+      return 0
+    end
+  end
+  return 1
+end
+
+complete -f -c pyenv -n '__fish_pyenv_needs_command' -a '(pyenv commands)'
+for cmd in (pyenv commands)
+  complete -f -c pyenv -n "__fish_pyenv_using_command $cmd" -a \
+    "(pyenv completions (commandline -opc)[2..-1])"
+end

completions/pyenv.zsh

@@ -5,15 +5,14 @@ fi
 compctl -K _pyenv pyenv
 
 _pyenv() {
-  local word words completions
+  local words completions
   read -cA words
-  word="${words[2]}"
 
   if [ "${#words}" -eq 2 ]; then
     completions="$(pyenv commands)"
   else
-    completions="$(pyenv completions "${word}")"
+    completions="$(pyenv completions ${words[2,-2]})"
   fi
 
-  reply=("${(ps:\n:)completions}")
+  reply=(${(ps:\n:)completions})
 }

libexec/pyenv

@@ -1,24 +1,59 @@
 #!/usr/bin/env bash
 set -e
-[ -n "$PYENV_DEBUG" ] && set -x
 
-resolve_link() {
-  $(type -p greadlink readlink | head -1) "$1"
+if [ "$1" = "--debug" ]; then
+  export PYENV_DEBUG=1
+  shift
+fi
+
+if [ -n "$PYENV_DEBUG" ]; then
+  # https://wiki-dev.bash-hackers.org/scripting/debuggingtips#making_xtrace_more_useful
+  export PS4='+(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
+  set -x
+fi
+
+abort() {
+  { if [ "$#" -eq 0 ]; then cat -
+    else echo "pyenv: $*"
+    fi
+  } >&2
+  exit 1
 }
 
-abs_dirname() {
-  local cwd="$(pwd)"
-  local path="$1"
+if enable -f "${BASH_SOURCE%/*}"/../libexec/pyenv-realpath.dylib realpath 2>/dev/null; then
+  abs_dirname() {
+    local path
+    path="$(realpath "$1")"
+    echo "${path%/*}"
+  }
+else
+  [ -z "$PYENV_NATIVE_EXT" ] || abort "failed to load \`realpath' builtin"
 
-  while [ -n "$path" ]; do
-    cd "${path%/*}"
-    local name="${path##*/}"
-    path="$(resolve_link "$name" || true)"
-  done
+  READLINK=$(type -P readlink)
+  [ -n "$READLINK" ] || abort "cannot find readlink - are you missing GNU coreutils?"
 
-  pwd
-  cd "$cwd"
-}
+  resolve_link() {
+    $READLINK "$1"
+  }
+
+  abs_dirname() {
+    local path="$1"
+
+    # Use a subshell to avoid changing the current path
+    (
+    while [ -n "$path" ]; do
+      cd_path="${path%/*}"
+      if [[ "$cd_path" != "$path" ]]; then
+        cd "$cd_path"
+      fi
+      name="${path##*/}"
+      path="$(resolve_link "$name" || true)"
+    done
+
+    echo "$PWD"
+    )
+  }
+fi
 
 if [ -z "${PYENV_ROOT}" ]; then
   PYENV_ROOT="${HOME}/.pyenv"
@@ -28,48 +63,79 @@ fi
 export PYENV_ROOT
 
 if [ -z "${PYENV_DIR}" ]; then
-  PYENV_DIR="$(pwd)"
-else
-  cd "$PYENV_DIR" 2>/dev/null || {
-    echo "pyenv: cannot change working directory to \`$PYENV_DIR'"
-    exit 1
-  } >&2
-  PYENV_DIR="$(pwd)"
-  cd "$OLDPWD"
+  PYENV_DIR="$PWD"
 fi
+
+if [ ! -d "$PYENV_DIR" ] || [ ! -e "$PYENV_DIR" ]; then
+  abort "cannot change working directory to \`$PYENV_DIR'"
+fi
+
+PYENV_DIR=$(cd "$PYENV_DIR" && echo "$PWD")
 export PYENV_DIR
 
 
 shopt -s nullglob
 
 bin_path="$(abs_dirname "$0")"
-for plugin_bin in "${PYENV_ROOT}/plugins/"*/bin; do
-  bin_path="${bin_path}:${plugin_bin}"
+for plugin_bin in "${bin_path%/*}"/plugins/*/bin; do
+  PATH="${plugin_bin}:${PATH}"
 done
+# PYENV_ROOT can be set to anything, so it may happen to be equal to the base path above,
+# resulting in duplicate PATH entries
+if [ "${bin_path%/*}" != "$PYENV_ROOT" ]; then
+  for plugin_bin in "${PYENV_ROOT}"/plugins/*/bin; do
+    PATH="${plugin_bin}:${PATH}"
+  done
+fi
 export PATH="${bin_path}:${PATH}"
 
-hook_path="${PYENV_HOOK_PATH}:${PYENV_ROOT}/pyenv.d:/usr/local/etc/pyenv.d:/etc/pyenv.d:/usr/lib/pyenv/hooks"
+PYENV_HOOK_PATH="${PYENV_HOOK_PATH}:${PYENV_ROOT}/pyenv.d"
+if [ "${bin_path%/*}" != "$PYENV_ROOT" ]; then
+  # Add pyenv's own `pyenv.d` unless pyenv was cloned to PYENV_ROOT
+  PYENV_HOOK_PATH="${PYENV_HOOK_PATH}:${bin_path%/*}/pyenv.d"
+fi
+PYENV_HOOK_PATH="${PYENV_HOOK_PATH}:/usr/etc/pyenv.d:/usr/local/etc/pyenv.d:/etc/pyenv.d:/usr/lib/pyenv/hooks"
 for plugin_hook in "${PYENV_ROOT}/plugins/"*/etc/pyenv.d; do
-  hook_path="${hook_path}:${plugin_hook}"
+  PYENV_HOOK_PATH="${PYENV_HOOK_PATH}:${plugin_hook}"
 done
-export PYENV_HOOK_PATH="$hook_path"
+PYENV_HOOK_PATH="${PYENV_HOOK_PATH#:}"
+export PYENV_HOOK_PATH
 
 shopt -u nullglob
 
 
 command="$1"
 case "$command" in
-"" | "-h" | "--help" )
-  echo -e "pyenv 0.1.1\n$(pyenv-help)" >&2
+"" )
+  { pyenv---version
+    pyenv-help
+  } | abort
+  ;;
+-v | --version )
+  exec pyenv---version
+  ;;
+-h | --help )
+  exec pyenv-help
   ;;
 * )
   command_path="$(command -v "pyenv-$command" || true)"
   if [ -z "$command_path" ]; then
-    echo "pyenv: no such command \`$command'" >&2
-    exit 1
+    if [ "$command" == "shell" ]; then
+      abort "shell integration not enabled. Run \`pyenv init' for instructions."
+    else
+      abort "no such command \`$command'"
+    fi
   fi
 
   shift 1
-  exec "$command_path" "$@"
+  if [ "$1" = --help ]; then
+    if [[ "$command" == "sh-"* ]]; then
+      echo "pyenv help \"$command\""
+    else
+      exec pyenv-help "$command"
+    fi
+  else
+    exec "$command_path" "$@"
+  fi
   ;;
 esac

libexec/pyenv---version

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+# Summary: Display the version of pyenv
+#
+# Displays the version number of this pyenv release, including the
+# current revision from git, if available.
+#
+# The format of the git revision is:
+#   <version>-<num_commits>-<git_sha>
+# where `num_commits` is the number of commits since `version` was
+# tagged.
+
+set -e
+[ -n "$PYENV_DEBUG" ] && set -x
+
+version="2.6.8"
+git_revision=""
+
+if cd "${BASH_SOURCE%/*}" 2>/dev/null && git remote -v 2>/dev/null | grep -q pyenv; then
+  git_revision="$(git describe --tags HEAD 2>/dev/null || true)"
+  git_revision="${git_revision#v}"
+fi
+
+echo "pyenv ${git_revision:-$version}"

libexec/pyenv-commands

@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
+# Summary: List all available pyenv commands
+# Usage: pyenv commands [--sh|--no-sh]
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
@@ -17,21 +20,23 @@ elif [ "$1" = "--no-sh" ]; then
   shift
 fi
 
+IFS=: paths=($PATH)
+
 shopt -s nullglob
 
-{ for path in ${PATH//:/$'\n'}; do
+{ for path in "${paths[@]}"; do
     for command in "${path}/pyenv-"*; do
       command="${command##*pyenv-}"
       if [ -n "$sh" ]; then
-        if [ ${command:0:3} = "sh-" ]; then
-          echo ${command##sh-}
+        if [ "${command:0:3}" = "sh-" ]; then
+          echo "${command##sh-}"
         fi
       elif [ -n "$nosh" ]; then
-        if [ ${command:0:3} != "sh-" ]; then
-          echo ${command##sh-}
+        if [ "${command:0:3}" != "sh-" ]; then
+          echo "${command##sh-}"
         fi
       else
-        echo ${command##sh-}
+        echo "${command##sh-}"
       fi
     done
   done

libexec/pyenv-completions

@@ -1,15 +1,26 @@
 #!/usr/bin/env bash
+# Usage: pyenv completions <command> [arg1 arg2...]
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
 COMMAND="$1"
 if [ -z "$COMMAND" ]; then
-  echo "usage: pyenv completions COMMAND [arg1 arg2...]" >&2
+  pyenv-help --usage completions >&2
   exit 1
 fi
 
+# Provide pyenv completions
+if [ "$COMMAND" = "--complete" ]; then
+  exec pyenv-commands
+fi
+
 COMMAND_PATH="$(command -v "pyenv-$COMMAND" || command -v "pyenv-sh-$COMMAND")"
-if grep -i "^# provide pyenv completions" "$COMMAND_PATH" >/dev/null; then
+
+# --help is provided automatically
+echo --help
+
+if grep -iE "^([#%]|--|//) provide pyenv completions" "$COMMAND_PATH" >/dev/null; then
   shift
   exec "$COMMAND_PATH" --complete "$@"
 fi

libexec/pyenv-exec

@@ -1,25 +1,48 @@
 #!/usr/bin/env bash
+#
+# Summary: Run an executable with the selected Python version
+#
+# Usage: pyenv exec <command> [arg1 arg2...]
+#
+# Runs an executable by first preparing PATH so that the selected Python
+# version's `bin' directory is at the front.
+#
+# For example, if the currently selected Python version is 2.7.6:
+#   pyenv exec pip install -r requirements.txt
+#
+# is equivalent to:
+#   PATH="$PYENV_ROOT/versions/2.7.6/bin:$PATH" pip install -r requirements.txt
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
 # Provide pyenv completions
 if [ "$1" = "--complete" ]; then
-  exec pyenv shims --short
+  exec pyenv-shims --short
 fi
 
+PYENV_VERSION="$(pyenv-version-name -f)"
 PYENV_COMMAND="$1"
+
 if [ -z "$PYENV_COMMAND" ]; then
-  echo "usage: pyenv exec COMMAND [arg1 arg2...]" >&2
+  pyenv-help --usage exec >&2
   exit 1
 fi
 
 PYENV_COMMAND_PATH="$(pyenv-which "$PYENV_COMMAND")"
 PYENV_BIN_PATH="${PYENV_COMMAND_PATH%/*}"
+export PYENV_VERSION
 
-for script in $(pyenv-hooks exec); do
+OLDIFS="$IFS"
+IFS=$'\n' scripts=(`pyenv-hooks exec`)
+IFS="$OLDIFS"
+for script in "${scripts[@]}"; do
   source "$script"
 done
 
 shift 1
-export PATH="${PYENV_BIN_PATH}:${PATH}"
-exec -a "$PYENV_COMMAND" "$PYENV_COMMAND_PATH" "$@"
+if [ "${PYENV_BIN_PATH#${PYENV_ROOT}}" != "${PYENV_BIN_PATH}" ]; then
+  # Only add to $PATH for non-system version.
+  export PATH="${PYENV_BIN_PATH}:${PATH}"
+fi
+exec "$PYENV_COMMAND_PATH" "$@"

libexec/pyenv-global

@@ -1,4 +1,25 @@
 #!/usr/bin/env bash
+#
+# Summary: Set or show the global Python version(s)
+#
+# Usage: pyenv global <version> <version2> <..>
+#
+# Sets the global Python version(s). You can override the global version at
+# any time by setting a directory-specific version with `pyenv local'
+# or by setting the `PYENV_VERSION' environment variable.
+#
+# <version> can be specified multiple times and should be a version
+# tag known to pyenv.  The special version string `system' will use
+# your default system Python.  Run `pyenv versions' for a list of
+# available Python versions.
+#
+# Example: To enable the python2.7 and python3.7 shims to find their
+#          respective executables you could set both versions with:
+#
+# 'pyenv global 3.7.0 2.7.15'
+#
+
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
@@ -8,19 +29,21 @@ if [ "$1" = "--complete" ]; then
   exec pyenv-versions --bare
 fi
 
-PYENV_VERSION=($@)
+versions=("$@")
 PYENV_VERSION_FILE="${PYENV_ROOT}/version"
 
-if [ -n "$PYENV_VERSION" ]; then
-  pyenv-version-file-write "$PYENV_VERSION_FILE" "${PYENV_VERSION[@]}"
+if [ -n "$versions" ]; then
+  pyenv-version-file-write "$PYENV_VERSION_FILE" "${versions[@]}"
 else
-  IFS=: PYENV_VERSION=($(
+  OLDIFS="$IFS"
+  IFS=: versions=($(
     pyenv-version-file-read "$PYENV_VERSION_FILE" ||
     pyenv-version-file-read "${PYENV_ROOT}/global" ||
     pyenv-version-file-read "${PYENV_ROOT}/default" ||
     echo system
   ))
-  for version in "${PYENV_VERSION[@]}"; do
+  IFS="$OLDIFS"
+  for version in "${versions[@]}"; do
     echo "$version"
   done
 fi

libexec/pyenv-help

@@ -1,99 +1,173 @@
 #!/usr/bin/env bash
+#
+# Summary: Display help for a command
+#
+# Usage: pyenv help [--usage] COMMAND
+#
+# Parses and displays help contents from a command's source file.
+#
+# A command is considered documented if it starts with a comment block
+# that has a `Summary:' or `Usage:' section. Usage instructions can
+# span multiple lines as long as subsequent lines are indented.
+# The remainder of the comment block is displayed as extended
+# documentation.
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
-print_set_version() {
-  echo "<version> should be a string matching a Python version known by pyenv."
+# Provide pyenv completions
+if [ "$1" = "--complete" ]; then
+  echo --usage
+  exec pyenv-commands
+fi
 
-  local versions="$(pyenv-versions --bare)"
-  if [ -z "$versions" ]; then
-    echo "There are currently no Python versions installed for pyenv."
-  else
-    echo "The currently installed Python versions are:"
-    echo "$versions" | sed 's/^/  /'
-  fi
-
-  echo
-  echo "The special version string 'system' will use your default system Python"
+command_path() {
+  local command="$1"
+  command -v pyenv-"$command" || command -v pyenv-sh-"$command" || true
 }
 
-case "$1" in
-"") echo "usage: pyenv <command> [<args>]
+extract_initial_comment_block() {
+  LC_ALL= \
+  LC_CTYPE=C \
+  sed -ne "
+    /^#/ !{
+      q
+    }
 
-Some useful pyenv commands are:
-   commands      List all pyenv commands
-   rehash        Rehash pyenv shims (run this after installing binaries)
-   global        Set or show the global Python version
-   local         Set or show the local directory-specific Python version
-   shell         Set or show the shell-specific Python version
-   version       Show the current Python version
-   versions      List all Python versions known by pyenv
-   which         Show the full path for the given Python command
-   whence        List all Python versions with the given command
+    s/^#$/# /
 
-See 'pyenv help <command>' for information on a specific command.
-For full documentation, see: https://github.com/sstephenson/pyenv#readme"
-;;
-commands) echo "usage: pyenv commands
-       pyenv commands --sh
-       pyenv commands --no-sh
+    /^# / {
+      s/^# //
+      p
+    }
+  "
+}
 
-List all pyenv commands."
-;;
-global) echo "usage: pyenv global <version>
+collect_documentation() {
+  # `tail` prevents "broken pipe" errors due to `head` closing the pipe without reading everything
+  # https://superuser.com/questions/554855/how-can-i-fix-a-broken-pipe-error/642932#642932
+  $(type -P gawk awk | tail -n +1 | head -n1) '
+    /^Summary:/ {
+      summary = substr($0, 10)
+      next
+    }
 
-Sets the global Python version. You can override the global version at
-any time by setting a directory-specific version with \`pyenv local'
-or by setting the PYENV_VERSION environment variable.
+    /^Usage:/ {
+      reading_usage = 1
+      usage = usage "\n" $0
+      next
+    }
 
-$(print_set_version)"
-;;
-local) echo "usage: pyenv local <version>
-       pyenv local --unset
+    /^( *$|       )/ && reading_usage {
+      usage = usage "\n" $0
+      next
+    }
 
-Sets the local directory-specific Python version by writing the version
-name to a file named '.pyenv-version'.
+    {
+      reading_usage = 0
+      help = help "\n" $0
+    }
 
-When you run a Python command, pyenv will look for an '.pyenv-version'
-file in the current directory and each parent directory. If no such
-file is found in the tree, pyenv will use the global Python version
-specified with \`pyenv global', or the version specified in the
-PYENV_VERSION environment variable.
+    function escape(str) {
+      gsub(/[`\\$"]/, "\\\\&", str)
+      return str
+    }
 
-$(print_set_version)"
-;;
-shell) echo "usage: pyenv shell <version>
-       pyenv shell --unset
+    function trim(str) {
+      sub(/^\n*/, "", str)
+      sub(/\n*$/, "", str)
+      return str
+    }
 
-Sets a shell-specific Python version by setting the 'PYENV_VERSION'
-environment variable in your shell. This version overrides both
-project-specific versions and the global version.
+    END {
+      if (usage || summary) {
+        print "summary=\"" escape(summary) "\""
+        print "usage=\"" escape(trim(usage)) "\""
+        print "help=\"" escape(trim(help)) "\""
+      }
+    }
+  '
+}
 
-$(print_set_version)"
-;;
-versions) echo "usage: pyenv versions
-       pyenv versions --bare
-
-Lists all Python versions known by pyenv."
-;;
-which) echo "usage: pyenv which <command>
-
-Displays the full path to the binary that pyenv will execute when you
-run the given command."
-;;
-whence) echo "usage: pyenv whence <command>
-
-Lists all Python versions with the given command installed."
-;;
-*)
-  command_path="$(command -v "pyenv-$1" || true)"
-  if [ -n "$command_path" ]; then
-    echo "Sorry, the \`$1' command isn't documented yet."
-    echo
-    echo "You can view the command's source here:"
-    echo "$command_path"
-    echo
-  else
-    echo "pyenv: no such command \`$1'"
+documentation_for() {
+  local filename
+  filename="$(command_path "$1")"
+  if [ -n "$filename" ]; then
+    extract_initial_comment_block < "$filename" | collect_documentation
   fi
-esac
+}
+
+print_summary() {
+  local command="$1"
+  local summary usage help
+  eval "$(documentation_for "$command")"
+
+  if [ -n "$summary" ]; then
+    printf "   %-9s   %s\n" "$command" "$summary"
+  fi
+}
+
+print_summaries() {
+  for command; do
+    print_summary "$command"
+  done
+}
+
+print_help() {
+  local command="$1"
+  local summary usage help
+  eval "$(documentation_for "$command")"
+  [ -n "$help" ] || help="$summary"
+
+  if [ -n "$usage" ] || [ -n "$summary" ]; then
+    if [ -n "$usage" ]; then
+      echo "$usage"
+    else
+      echo "Usage: pyenv ${command}"
+    fi
+    if [ -n "$help" ]; then
+      echo
+      echo "$help"
+      echo
+    fi
+  else
+    echo "Sorry, this command isn't documented yet." >&2
+    return 1
+  fi
+}
+
+print_usage() {
+  local command="$1"
+  local summary usage help
+  eval "$(documentation_for "$command")"
+  [ -z "$usage" ] || echo "$usage"
+}
+
+unset usage
+if [ "$1" = "--usage" ]; then
+  usage="1"
+  shift
+fi
+
+if [ -z "$1" ] || [ "$1" == "pyenv" ]; then
+  echo "Usage: pyenv <command> [<args>]"
+  [ -z "$usage" ] || exit
+  echo
+  echo "Some useful pyenv commands are:"
+  print_summaries $(exec pyenv-commands | sort -u)
+  echo
+  echo "See \`pyenv help <command>' for information on a specific command."
+  echo "For full documentation, see: https://github.com/pyenv/pyenv#readme"
+else
+  command="$1"
+  if [ -n "$(command_path "$command")" ]; then
+    if [ -n "$usage" ]; then
+      print_usage "$command"
+    else
+      print_help "$command"
+    fi
+  else
+    echo "pyenv: no such command \`$command'" >&2
+    exit 1
+  fi
+fi

libexec/pyenv-hooks

@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
+# Summary: List hook scripts for a given pyenv command
+# Usage: pyenv hooks <command>
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
@@ -6,39 +9,55 @@ set -e
 if [ "$1" = "--complete" ]; then
   echo exec
   echo rehash
+  echo version-name
+  echo version-origin
   echo which
   exit
 fi
 
 PYENV_COMMAND="$1"
 if [ -z "$PYENV_COMMAND" ]; then
-  echo "usage: pyenv hooks COMMAND" >&2
+  pyenv-help --usage hooks >&2
+  exit 1
+fi
+
+if ! enable -f "${BASH_SOURCE%/*}"/pyenv-realpath.dylib realpath 2>/dev/null; then
+  if [ -n "$PYENV_NATIVE_EXT" ]; then
+    echo "pyenv: failed to load \`realpath' builtin" >&2
+    exit 1
+  fi
+READLINK=$(type -P readlink)
+if [ -z "$READLINK" ]; then
+  echo "pyenv: cannot find readlink - are you missing GNU coreutils?" >&2
   exit 1
 fi
 
 resolve_link() {
-  $(type -p greadlink readlink | head -1) $1
+  $READLINK "$1"
 }
 
 realpath() {
-  local cwd="$(pwd)"
-  local base="$(basename $1)"
   local path="$1"
-
+  local name
+  # Use a subshell to avoid changing the current path
+  (
   while [ -n "$path" ]; do
-    cd "${path%/*}"
-    local name="${path##*/}"
+    name="${path##*/}"
+    [ "$name" = "$path" ] || cd "${path%/*}"
     path="$(resolve_link "$name" || true)"
   done
 
-  echo "$(pwd)/$base"
-  cd "$cwd"
+  echo "${PWD}/$name"
+  )
 }
+fi
+
+IFS=: hook_paths=($PYENV_HOOK_PATH)
 
 shopt -s nullglob
-for path in ${PYENV_HOOK_PATH//:/$'\n'}; do
-  for script in $path/"$PYENV_COMMAND"/*.bash; do
-    echo $(realpath $script)
+for path in "${hook_paths[@]}"; do
+  for script in "$path/$PYENV_COMMAND"/*.bash; do
+    realpath "$script"
   done
 done
 shopt -u nullglob

libexec/pyenv-init

@@ -1,101 +1,301 @@
 #!/usr/bin/env bash
+# Summary: Configure the shell environment for pyenv
+# Usage: eval "$(pyenv init [-|--path] [--no-push-path] [--detect-shell] [--no-rehash] [<shell>])"
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
-print=""
-no_rehash=""
-for args in "$@"
-do
-  if [ "$args" = "-" ]; then
-    print=1
-		shift
-  fi
+# Provide pyenv completions
+if [ "$1" = "--complete" ]; then
+  echo -
+  echo --path
+  echo --no-push-path
+  echo --no-rehash
+  echo --detect-shell
+  echo bash
+  echo fish
+  echo ksh
+  echo zsh
+  exit
+fi
 
-  if [ "$args" = "--no-rehash" ]; then
-    no_rehash=1
-    shift
-  fi
+mode="help"
+
+while [ "$#" -gt 0 ]; do
+  case "$1" in
+    -)
+      mode="print"
+      ;;
+    --path)
+      mode="path"
+      ;;
+    --detect-shell)
+      mode="detect-shell"
+      ;;
+    --no-push-path)
+      no_push_path=1
+      ;;
+    --no-rehash)
+      no_rehash=1
+      ;;
+    *)
+      shell="$1"
+      ;;
+  esac
+  shift
 done
 
-shell="$1"
+# If shell is not provided, detect it.
 if [ -z "$shell" ]; then
-  shell="$(basename "$SHELL")"
+  if shell=$(tr '\0' ' ' 2>/dev/null </proc/"$PPID"/cmdline);then
+  	  :
+  else
+  	  shell=$(ps p "$PPID" -o 'args=' 2>/dev/null || true)
+  fi
+  shell="${shell%% *}"
+  shell="${shell##-}"
+  shell="${shell:-$SHELL}"
+  shell="${shell##*/}"
+  shell="${shell%%-*}"
 fi
 
-resolve_link() {
-  $(type -p greadlink readlink | head -1) $1
+function main() {
+  case "$mode" in
+  "help")
+    help_
+    exit 1
+    ;;
+  "path")
+    print_path
+    print_rehash
+    exit 0
+    ;;
+  "print")
+    init_dirs
+    print_path
+    print_env
+    print_completion
+    print_rehash
+    print_shell_function
+    exit 0
+    ;;
+  "detect-shell")
+    detect_profile 1
+    print_detect_shell
+    exit 0
+    ;;
+  esac
+  # should never get here
+  exit 2
 }
 
-abs_dirname() {
-  local cwd="$(pwd)"
-  local path="$1"
+function detect_profile() {
+  local detect_for_detect_shell="$1"
 
-  while [ -n "$path" ]; do
-    cd "${path%/*}"
-    local name="${path##*/}"
-    path="$(resolve_link "$name" || true)"
-  done
-
-  pwd
-  cd "$cwd"
-}
-
-root="$(abs_dirname "$0")/.."
-
-if [ -z "$print" ]; then
   case "$shell" in
   bash )
-    profile='~/.bash_profile'
+    if [ -e '~/.bash_profile' ]; then
+      profile='~/.bash_profile'
+    else
+      profile='~/.profile'
+    fi
+    profile_explain="~/.bash_profile if it exists, otherwise ~/.profile"
+    rc='~/.bashrc'
     ;;
   zsh )
-    profile='~/.zshrc'
+    profile='~/.zprofile'
+    rc='~/.zshrc'
     ;;
-  ksh )
+  ksh | ksh93 | mksh )
+    # There are two implementations of Korn shell: AT&T (ksh93) and Mir (mksh).
+    # Systems may have them installed under those names, or as ksh, so those
+    # are recognized here. The obsolete ksh88 (subsumed by ksh93) and pdksh
+    # (subsumed by mksh) are not included, since they are unlikely to still
+    # be in use as interactive shells anywhere.
     profile='~/.profile'
+    rc='~/.profile'
     ;;
   * )
-    profile='your profile'
+    if [ -n "$detect_for_detect_shell" ]; then
+      profile=
+      rc=
+    else
+      profile='your shell'\''s login startup file'
+      rc='your shell'\''s interactive startup file'
+    fi
+    ;;
+  esac
+}
+
+function print_detect_shell() {
+  echo "PYENV_SHELL_DETECT=$shell"
+  echo "PYENV_PROFILE_DETECT=$profile"
+  echo "PYENV_RC_DETECT=$rc"
+}
+
+function help_() {
+  detect_profile
+  {
+    case "$shell" in
+    fish )
+      echo "# Add pyenv executable to PATH by running"
+      echo "# the following interactively:"
+      echo
+      echo 'set -Ux PYENV_ROOT $HOME/.pyenv'
+      echo 'set -U fish_user_paths $PYENV_ROOT/bin $fish_user_paths'
+      echo
+      echo "# Load pyenv automatically by appending"
+      echo "# the following to ~/.config/fish/config.fish:"
+      echo
+      echo 'pyenv init - fish | source'
+      echo
+      ;;
+    * )
+      echo '# Load pyenv automatically by appending'
+      echo -n "# the following to "
+      if [ "$profile" == "$rc" ]; then
+        echo "$profile :"
+      else
+        echo
+        echo "# ${profile_explain:-$profile} (for login shells)"
+        echo "# and $rc (for interactive shells) :"
+      fi
+      echo
+      echo 'export PYENV_ROOT="$HOME/.pyenv"'
+      echo '[[ -d $PYENV_ROOT/bin ]] && export PATH="$PYENV_ROOT/bin:$PATH"'
+      echo 'eval "$(pyenv init - '$shell')"'
+      ;;
+    esac
+    echo
+    echo '# Restart your shell for the changes to take effect.'
+    echo
+  } >&2
+}
+
+function init_dirs() {
+  mkdir -p "${PYENV_ROOT}/"{shims,versions}
+}
+
+function print_path() {
+  # if no_push_path is set, guard the PATH manipulation with a check on whether
+  # the shim is already in the PATH.
+  if [ -n "$no_push_path" ]; then
+    case "$shell" in
+      fish )
+          echo 'if not contains -- "'"${PYENV_ROOT}/shims"'" $PATH'
+          print_path_prepend_shims
+          echo 'end'
+          ;;
+      * )
+          echo 'if [[ ":$PATH:" != *'\':"${PYENV_ROOT}"/shims:\''* ]]; then'
+          print_path_prepend_shims
+          echo 'fi'
+          ;;
+    esac
+  else
+    case "$shell" in
+      fish )
+        echo 'while set pyenv_index (contains -i -- "'"${PYENV_ROOT}/shims"'" $PATH)'
+        echo 'set -eg PATH[$pyenv_index]; end; set -e pyenv_index'
+        print_path_prepend_shims
+        ;;
+      * )
+        # Some distros (notably Debian-based) set Bash's SSH_SOURCE_BASHRC compilation option
+        # that makes it source `bashrc` under SSH even when not interactive.
+        # This is inhibited by a guard in Debian's stock `bashrc` but some people remove it
+        # in order to get proper environment for noninteractive remote commands
+        # (SSH provides /etc/ssh/sshrc and ~/.ssh/rc for that but no-one seems to use them for some reason).
+        # This has caused an infinite `bashrc` execution loop for those people in the below nested Bash invocation (#2367).
+        # --norc negates this behavior of such a customized Bash.
+        echo 'PATH="$(bash --norc -ec '\''IFS=:; paths=($PATH); '
+        echo 'for i in ${!paths[@]}; do '
+        echo 'if [[ ${paths[i]} == "'\'\'"${PYENV_ROOT}/shims"\'\''" ]]; then unset '\'\\\'\''paths[i]'\'\\\'\''; '
+        echo 'fi; done; '
+        echo 'echo "${paths[*]}"'\'')"'
+        print_path_prepend_shims
+        ;;
+    esac
+  fi
+}
+
+function print_path_prepend_shims() {
+    case "$shell" in
+      fish )
+          echo 'set -gx PATH '\'"${PYENV_ROOT}/shims"\'' $PATH'
+          ;;
+      * )
+          echo 'export PATH="'"${PYENV_ROOT}"'/shims:${PATH}"'
+          ;;
+    esac
+}
+
+function print_env() {
+  case "$shell" in
+  fish )
+    echo "set -gx PYENV_SHELL $shell"
+    ;;
+  * )
+    echo "export PYENV_SHELL=$shell"
+    ;;
+  esac
+}
+
+function print_completion() {
+  completion="${0%/*/*}/completions/pyenv.${shell}"
+  if [ -r "$completion" ]; then
+    echo "source '$completion'"
+  fi
+}
+
+function print_rehash() {
+  if [ -z "$no_rehash" ]; then
+    echo 'command pyenv rehash 2>/dev/null'
+  fi
+}
+
+function print_shell_function() {
+  commands=(`pyenv-commands --sh`)
+  case "$shell" in
+  fish )
+    echo \
+'function pyenv
+  set command $argv[1]
+  set -e argv[1]
+
+  switch "$command"
+  case '"${commands[*]}"'
+    source (pyenv "sh-$command" $argv|psub)
+  case "*"
+    command pyenv "$command" $argv
+  end
+end'
+    ;;
+  ksh | ksh93 | mksh )
+    echo \
+'function pyenv {
+  typeset command=${1:-}'
+    ;;
+  * )
+    echo \
+'pyenv() {
+  local command=${1:-}'
     ;;
   esac
 
-  { echo "# Load pyenv automatically by adding"
-    echo "# the following to ${profile}:"
-    echo
-    echo 'eval "$(pyenv init -)"'
-    echo
-  } >&2
-
-  exit 1
-fi
-
-mkdir -p "${PYENV_ROOT}/"{shims,versions}
-
-echo 'export PATH="'${PYENV_ROOT}'/shims:${PATH}"'
-
-case "$shell" in
-bash | zsh )
-  echo "source \"$root/completions/pyenv.${shell}\""
-  ;;
-esac
-
-if [ -z "$no_rehash" ]; then
-  echo 'pyenv rehash 2>/dev/null'
-fi
-
-commands=(`pyenv commands --sh`)
-IFS="|"
-cat <<EOS
-pyenv() {
-  local command="\$1"
-  if [ "\$#" -gt 0 ]; then
-    shift
-  fi
-
-  case "\$command" in
-  ${commands[*]})
-    eval \`pyenv "sh-\$command" "\$@"\`;;
+  if [ "$shell" != "fish" ]; then
+    IFS="|"
+    echo \
+'  [ "$#" -gt 0 ] && shift
+  case "$command" in
+  '"${commands[*]:-/}"')
+    eval "$(pyenv "sh-$command" "$@")"
+    ;;
   *)
-    command pyenv "\$command" "\$@";;
+    command pyenv "$command" "$@"
+    ;;
   esac
+}'
+  fi
 }
-EOS
+
+main

libexec/pyenv-latest

@@ -0,0 +1,100 @@
+#!/usr/bin/env bash
+# Summary: Print the latest installed or known version with the given prefix
+# Usage: pyenv latest [-k|--known] <prefix>
+#
+#   -k/--known      Select from all known versions instead of installed
+#   -b/--bypass     (internal) On a resolution failure, do not print an error message
+#                   but rather print the argument unchanged
+#   -f/--force      (internal) Same as -b but also do not return a failure exit code
+
+set -e
+[ -n "$PYENV_DEBUG" ] && set -x
+
+while [[ $# -gt 0 ]]
+do
+    case "$1" in
+        -k|--known)
+            FROM_KNOWN=1
+            shift
+            ;;
+        -b|--bypass)
+            BYPASS=1
+            shift
+            ;;
+        -f|--force)
+            FORCE=1
+            BYPASS=1
+            shift
+            ;;
+        *)
+            break
+            ;;
+    esac
+done
+
+prefix=$1
+exitcode=0
+
+IFS=$'\n'
+
+    if [[ -z $FROM_KNOWN ]]; then
+        DEFINITION_CANDIDATES=( $(pyenv-versions --bare --skip-envs) )
+    else
+        DEFINITION_CANDIDATES=( $(python-build --definitions ) )
+    fi
+    
+    if printf '%s\n' "${DEFINITION_CANDIDATES[@]}" 2>/dev/null | grep -qxFe "$prefix"; then
+        echo "$prefix"
+        exit $exitcode;
+    fi
+    
+    suffix=""
+    if [[ $prefix =~ ^(.*[0-9])t$ ]]; then
+        suffix="t"
+        prefix="${BASH_REMATCH[1]}"
+    fi
+    
+    # https://stackoverflow.com/questions/11856054/is-there-an-easy-way-to-pass-a-raw-string-to-grep/63483807#63483807 
+    prefix_re="$(sed 's/[^\^]/[&]/g;s/[\^]/\\&/g' <<< "$prefix")"
+    suffix_re="$(sed 's/[^\^]/[&]/g;s/[\^]/\\&/g' <<< "$suffix")"
+    # FIXME: more reliable and readable would probably be to loop over them and transform in pure Bash
+    DEFINITION_CANDIDATES=(\
+      $(printf '%s\n' "${DEFINITION_CANDIDATES[@]}" | \
+      grep -Ee "^$prefix_re[-.].*$suffix_re\$" || true))
+
+    DEFINITION_CANDIDATES=(\
+        $(printf '%s\n' "${DEFINITION_CANDIDATES[@]}" | \
+          sed -E -e '/-dev$/d' -e '/-src$/d' -e '/-latest$/d' -e '/(a|b|rc)[0-9]+$/d' \
+            $(if [[ -z $suffix ]]; then echo "-e /[0-9]t\$/d"; fi)
+        ));
+
+    # Compose a sorting key, followed by | and original value
+    DEFINITION_CANDIDATES=(\
+        $(printf '%s\n' "${DEFINITION_CANDIDATES[@]}" | \
+          awk \
+            '{ if (match($0,"^[[:alnum:]]+-"))
+               { print substr($0,0,RLENGTH-1) "." substr($0,RLENGTH+1) "..|" $0; }
+             else
+               { print $0 "...|" $0; }
+             }'))
+    DEFINITION_CANDIDATES=(\
+        $(printf '%s\n' "${DEFINITION_CANDIDATES[@]}" \
+          | sort -t. -k1,1r -k 2,2nr -k 3,3nr -k4,4nr \
+          | cut -f2 -d $'|' \
+        || true))
+    DEFINITION="${DEFINITION_CANDIDATES[0]}"
+
+    if [[ -n "$DEFINITION" ]]; then
+        echo "$DEFINITION"
+    else
+        if [[ -z $BYPASS ]]; then
+            echo "pyenv: no $([[ -z $FROM_KNOWN ]] && echo installed || echo known) versions match the prefix \`$prefix'" >&2
+        else
+            echo "$prefix"
+        fi
+        if [[ -z $FORCE ]]; then
+            exitcode=1
+        fi
+    fi
+
+exit $exitcode

libexec/pyenv-local

@@ -1,4 +1,33 @@
 #!/usr/bin/env bash
+#
+# Summary: Set or show the local application-specific Python version(s)
+#
+# Usage: pyenv local [-f|--force] [<version> [...]]
+#        pyenv local --unset
+#
+#   -f/--force    Do not verify that the versions being set exist
+#
+# Sets the local application-specific Python version(s) by writing the
+# version name to a file named `.python-version'.
+#
+# When you run a Python command, pyenv will look for a `.python-version'
+# file in the current directory and each parent directory. If no such
+# file is found in the tree, pyenv will use the global Python version
+# specified with `pyenv global'. A version specified with the
+# `PYENV_VERSION' environment variable takes precedence over local
+# and global versions.
+#
+# <version> can be specified multiple times and should be a version
+# tag known to pyenv.  The special version string `system' will use
+# your default system Python.  Run `pyenv versions' for a list of
+# available Python versions.
+#
+# Example: To enable the python2.7 and python3.7 shims to find their
+#          respective executables you could set both versions with:
+#
+# 'pyenv local 3.7.0 2.7.15'
+
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
@@ -9,21 +38,33 @@ if [ "$1" = "--complete" ]; then
   exec pyenv-versions --bare
 fi
 
-PYENV_VERSION=($@)
-PYENV_VERSION_FILE=".pyenv-version"
+while [[ $# -gt 0 ]]
+do
+    case "$1" in
+        -f|--force)
+            FORCE=1
+            shift
+            ;;
+        *)
+            break
+            ;;
+    esac
+done
 
-if [ "$PYENV_VERSION" = "--unset" ]; then
-  rm -f "$PYENV_VERSION_FILE"
-elif [ -n "$PYENV_VERSION" ]; then
-  pyenv-version-file-write "$PYENV_VERSION_FILE" "${PYENV_VERSION[@]}"
+versions=("$@")
+
+if [ "$versions" = "--unset" ]; then
+  rm -f .python-version
+elif [ -n "$versions" ]; then
+  pyenv-version-file-write ${FORCE:+-f }.python-version "${versions[@]}"
 else
-  IFS=: PYENV_VERSION=($(
-    pyenv-version-file-read "$PYENV_VERSION_FILE" ||
-    { echo "pyenv: no local version configured for this directory"
-      exit 1
-    } >&2
-  ))
-  for version in "${PYENV_VERSION[@]}"; do
-    echo "$version"
-  done
+  if version_file="$(pyenv-version-file "$PWD")"; then
+    IFS=: versions=($(pyenv-version-file-read "$version_file"))
+    for version in "${versions[@]}"; do
+      echo "$version"
+    done
+  else
+    echo "pyenv: no local version configured for this directory" >&2
+    exit 1
+  fi
 fi

libexec/pyenv-prefix

@@ -1,4 +1,11 @@
 #!/usr/bin/env bash
+# Summary: Display prefixes for Python versions
+# Usage: pyenv prefix [<version>...]
+#
+# Displays the directories where the given Python versions are installed,
+# separated by colons. If no version is given, `pyenv prefix' displays the
+# locations of the currently selected versions.
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
@@ -9,26 +16,47 @@ if [ "$1" = "--complete" ]; then
 fi
 
 if [ -n "$1" ]; then
-  export PYENV_VERSION=($@)
-else
-  IFS=: PYENV_VERSION=($(pyenv-version-name))
-fi
-
-if [ "$PYENV_VERSION" = "system" ]; then
-  PYTHON_PATH="$(pyenv-which python)"
-  echo "${PYTHON_PATH%/*}"
-  exit
+  OLDIFS="$IFS"
+  { IFS=:
+    export PYENV_VERSION="$*"
+  }
+  IFS="$OLDIFS"
+elif [ -z "$PYENV_VERSION" ]; then
+  PYENV_VERSION="$(pyenv-version-name)"
 fi
 
 PYENV_PREFIX_PATHS=()
-for version in "${PYENV_VERSION[@]}"; do
-  PYENV_PREFIX_PATH="${PYENV_ROOT}/versions/${version}"
-  if [ -d "$PYENV_PREFIX_PATH" ]; then
-    PYENV_PREFIX_PATHS=("${PYENV_PREFIX_PATHS[@]}" "$PYENV_PREFIX_PATH")
-  else
-    echo "pyenv: version \`${version}' not installed" >&2
-    exit 1
-  fi
-done
+OLDIFS="$IFS"
+{ IFS=:
+  for version in ${PYENV_VERSION}; do
+    if [ "$version" = "system" ]; then
+      if PYTHON_PATH="$(PYENV_VERSION="${version}" pyenv-which python --skip-advice 2>/dev/null)" || \
+          PYTHON_PATH="$(PYENV_VERSION="${version}" pyenv-which python3 --skip-advice 2>/dev/null)" || \
+          PYTHON_PATH="$(PYENV_VERSION="${version}" pyenv-which python2 --skip-advice 2>/dev/null)"; then
+        shopt -s extglob
+        # In some distros (Arch), Python can be found in sbin as well as bin
+        PYENV_PREFIX_PATH="${PYTHON_PATH%/?(s)bin/*}"
+        PYENV_PREFIX_PATH="${PYENV_PREFIX_PATH:-/}"
+      else
+        echo "pyenv: system version not found in PATH" >&2
+        exit 1
+      fi
+    else
+      version="$(pyenv-latest -f "$version")"
+      PYENV_PREFIX_PATH="${PYENV_ROOT}/versions/${version}"
+    fi
+    if [ -d "$PYENV_PREFIX_PATH" ]; then
+      PYENV_PREFIX_PATHS=("${PYENV_PREFIX_PATHS[@]}" "$PYENV_PREFIX_PATH")
+    else
+      echo "pyenv: version \`${version}' not installed" >&2
+      exit 1
+    fi
+  done
+}
+IFS="$OLDIFS"
 
-IFS=: echo "${PYENV_PREFIX_PATHS[*]}"
+OLDIFS="$IFS"
+{ IFS=:
+  echo "${PYENV_PREFIX_PATHS[*]}"
+}
+IFS="$OLDIFS"

libexec/pyenv-rehash

@@ -1,4 +1,6 @@
 #!/usr/bin/env bash
+# Summary: Rehash pyenv shims (run this after installing executables)
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
@@ -8,143 +10,181 @@ PROTOTYPE_SHIM_PATH="${SHIM_PATH}/.pyenv-shim"
 # Create the shims directory if it doesn't already exist.
 mkdir -p "$SHIM_PATH"
 
-# Ensure only one instance of pyenv-rehash is running at a time by
-# setting the shell's `noclobber` option and attempting to write to
-# the prototype shim file. If the file already exists, print a warning
-# to stderr and exit with a non-zero status.
-set -o noclobber
-{ echo > "$PROTOTYPE_SHIM_PATH"
-} 2>/dev/null ||
-{ echo "pyenv: cannot rehash: $PROTOTYPE_SHIM_PATH exists"
-  exit 1
-} >&2
-set +o noclobber
+acquire_lock() {
+  # Ensure only one instance of pyenv-rehash is running at a time by
+  # setting the shell's `noclobber` option and attempting to write to
+  # the prototype shim file. If the file already exists, print a warning
+  # to stderr and exit with a non-zero status.
+  local ret
+  set -o noclobber
+  echo > "$PROTOTYPE_SHIM_PATH" 2>| /dev/null || ret=1
+  set +o noclobber
+  [ -z "${ret}" ]
+}
 
 # If we were able to obtain a lock, register a trap to clean up the
 # prototype shim when the process exits.
-trap remove_prototype_shim EXIT
+trap release_lock EXIT
 
 remove_prototype_shim() {
   rm -f "$PROTOTYPE_SHIM_PATH"
 }
 
+release_lock() {
+  remove_prototype_shim
+}
+
+if [ ! -w "$SHIM_PATH" ]; then
+  echo "pyenv: cannot rehash: $SHIM_PATH isn't writable"
+  exit 1
+fi
+
+unset acquired
+start=$SECONDS
+while (( SECONDS <= start + ${PYENV_REHASH_TIMEOUT:-60} )); do
+  if acquire_lock 2>/dev/null; then
+    acquired=1
+    break
+  else
+    # POSIX sleep(1) doesn't provide subsecond precision, but many others do
+    sleep 0.1 2>/dev/null || sleep 1
+  fi
+done
+
+if [ -z "${acquired}" ]; then
+  echo "pyenv: cannot rehash: $PROTOTYPE_SHIM_PATH exists"
+  exit 1
+fi
+
 # The prototype shim file is a script that re-execs itself, passing
 # its filename and any arguments to `pyenv exec`. This file is
-# hard-linked for every binary and then removed. The linking technique
-# is fast, uses less disk space than unique files, and also serves as
-# a locking mechanism.
+# hard-linked for every executable and then removed. The linking
+# technique is fast, uses less disk space than unique files, and also
+# serves as a locking mechanism.
 create_prototype_shim() {
   cat > "$PROTOTYPE_SHIM_PATH" <<SH
 #!/usr/bin/env bash
 set -e
+[ -n "\$PYENV_DEBUG" ] && set -x
+
+program="\${0##*/}"
+
 export PYENV_ROOT="$PYENV_ROOT"
-exec pyenv exec "\${0##*/}" "\$@"
+exec "$(command -v pyenv)" exec "\$program" "\$@"
 SH
   chmod +x "$PROTOTYPE_SHIM_PATH"
 }
 
+# If the contents of the prototype shim file differ from the contents
+# of the first shim in the shims directory, assume pyenv has been
+# upgraded and the existing shims need to be removed.
+remove_outdated_shims() {
+  local shim
+  for shim in "$SHIM_PATH"/*; do
+    if ! diff "$PROTOTYPE_SHIM_PATH" "$shim" >/dev/null 2>&1; then
+      rm -f "$SHIM_PATH"/*
+    fi
+    break
+  done
+}
+
+# List basenames of executables for every Python version
+list_executable_names() {
+  local version file
+  pyenv-versions --bare --skip-aliases | \
+  while read -r version; do
+    for file in "${PYENV_ROOT}/versions/${version}/bin/"*; do
+      echo "${file##*/}"
+    done
+  done
+}
+
 # The basename of each argument passed to `make_shims` will be
 # registered for installation as a shim. In this way, plugins may call
 # `make_shims` with a glob to register many shims at once.
 make_shims() {
-  local shims="$@"
-
-  for file in $shims; do
-    local shim="${file##*/}"
+  local file shim
+  for file; do
+    shim="${file##*/}"
     register_shim "$shim"
   done
 }
 
-# Create an empty array for the list of registered shims.
-registered_shims=()
+if ((${BASH_VERSINFO[0]} > 3)); then
 
-# We will keep track of shims registered for installation with the
-# global `reigstered_shims` array and with a global variable for each
-# shim. The array will let us iterate over all registered shims. The
-# global variables will let us quickly check whether a shim with the
-# given name has been registered or not.
-register_shim() {
-  local shim="$@"
-  local var="$(shim_variable_name "$shim")"
+  declare -A registered_shims
 
-  if [ -z "${!var}" ]; then
-    registered_shims[${#registered_shims[*]}]="$shim"
-    eval "${var}=1"
-  fi
-}
+  # Registers the name of a shim to be generated.
+  register_shim() {
+    registered_shims["$1"]=1
+  }
 
-# To compute the global variable name for a given shim we must first
-# escape any non-alphanumeric characters. If the shim name is
-# alphanumeric (including a hyphen or underscore) we can take a
-# shorter path. Otherwise, we must iterate over each character and
-# escape the non-alphanumeric ones using `printf`.
-shim_variable_name() {
-  local shim="$1"
-  local result="_shim_"
+  # Install all shims registered via `make_shims` or `register_shim` directly.
+  install_registered_shims() {
+    local shim file
+    for shim in "${!registered_shims[@]}"; do
+      file="${SHIM_PATH}/${shim}"
+      [ -e "$file" ] || cp "$PROTOTYPE_SHIM_PATH" "$file"
+    done
+  }
 
-  if [[ ! "$shim" =~ [^[:alnum:]_-] ]]; then
-    shim="${shim//_/_5f}"
-    shim="${shim//-/_2d}"
-    result="$result$shim"
-  else
-    local length="${#shim}"
-    local char i
-
-    for ((i=0; i<length; i++)); do
-      char="${shim:$i:1}"
-      if [[ "$char" =~ [[:alnum:]] ]]; then
-        result="$result$char"
-      else
-        result="$result$(printf "_%02x" \'"$char")"
+  # Once the registered shims have been installed, we make a second pass
+  # over the contents of the shims directory. Any file that is present
+  # in the directory but has not been registered as a shim should be
+  # removed.
+  remove_stale_shims() {
+    local shim
+    for shim in "$SHIM_PATH"/*; do
+      if [[ ! ${registered_shims["${shim##*/}"]} ]]; then
+        rm -f "$shim"
       fi
     done
-  fi
+  }
 
-  echo "$result"
-}
+else # Same for bash < 4.
 
-# To install all the registered shims, we iterate over the
-# `registered_shims` array and create a link if one does not already
-# exist.
-install_registered_shims() {
-  for shim in "${registered_shims[@]}"; do
-    [ -e "$shim" ] || ln -f "$PROTOTYPE_SHIM_PATH" "$shim"
-  done
-}
+    registered_shims=" "
 
-# Once the registered shims have been installed, we make a second pass
-# over the contents of the shims directory. Any file that is present
-# in the directory but has not been registered as a shim should be
-# removed.
-remove_stale_shims() {
-  local var
-  for shim in *; do
-    var="$(shim_variable_name "$shim")"
-    if [ -z "${!var}" ]; then
-      rm -f "$shim" 
-    fi
-  done
-}
+    register_shim() {
+      registered_shims="${registered_shims}${1} "
+    }
 
+    install_registered_shims() {
+      local shim file
+      for shim in $registered_shims; do
+        file="${SHIM_PATH}/${shim}"
+        [ -e "$file" ] || cp "$PROTOTYPE_SHIM_PATH" "$file"
+      done
+    }
 
-# Change to the shims directory.
-cd "$SHIM_PATH"
+    remove_stale_shims() {
+      local shim
+      for shim in "$SHIM_PATH"/*; do
+        if [[ "$registered_shims" != *" ${shim##*/} "* ]]; then
+          rm -f "$shim"
+        fi
+      done
+    }
+fi
 
-# Create the prototype shim, then register shims for all known binaries.
-create_prototype_shim
 shopt -s nullglob
-make_shims ../versions/*/bin/*
 
-# Restore the previous working directory.
-cd "$OLDPWD"
+# Create the prototype shim, then register shims for all known
+# executables.
+create_prototype_shim
+remove_outdated_shims
+# shellcheck disable=SC2046
+make_shims $(list_executable_names | sort -u)
+
 
 # Allow plugins to register shims.
-for script in $(pyenv-hooks rehash); do
+OLDIFS="$IFS"
+IFS=$'\n' scripts=(`pyenv-hooks rehash`)
+IFS="$OLDIFS"
+
+for script in "${scripts[@]}"; do
   source "$script"
 done
 
-# Change back to the shims directory to install the registered shims
-# and remove stale shims.
-cd "$SHIM_PATH"
 install_registered_shims
 remove_stale_shims

libexec/pyenv-root

@@ -1,2 +1,3 @@
 #!/usr/bin/env bash
-echo $PYENV_ROOT
+# Summary: Display the root directory where versions and shims are kept
+echo "$PYENV_ROOT"

libexec/pyenv-sh-rehash

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$PYENV_DEBUG" ] && set -x
+
+# Provide pyenv completions
+if [ "$1" = "--complete" ]; then
+  exec pyenv-rehash --complete
+fi
+
+shell="$(basename "${PYENV_SHELL:-$SHELL}")"
+
+# When pyenv shell integration is enabled, delegate to pyenv-rehash,
+# then tell the shell to empty its command lookup cache.
+pyenv-rehash
+
+case "$shell" in
+fish )
+  # no rehash support
+  ;;
+* )
+  echo "hash -r 2>/dev/null || true"
+  ;;
+esac

libexec/pyenv-sh-shell

@@ -1,4 +1,24 @@
 #!/usr/bin/env bash
+#
+# Summary: Set or show the shell-specific Python version
+#
+# Usage: pyenv shell <version>...
+#        pyenv shell -
+#        pyenv shell --unset
+#
+# Sets a shell-specific Python version by setting the `PYENV_VERSION'
+# environment variable in your shell. This version overrides local
+# application-specific versions and the global version.
+#
+# <version> should be a string matching a Python version known to pyenv.
+# The special version string `system' will use your default system Python.
+# Run `pyenv versions' for a list of available Python versions.
+#
+# When `-` is passed instead of the version string, the previously set
+# version will be restored. With `--unset`, the `PYENV_VERSION`
+# environment variable gets unset, restoring the environment to the
+# state before the first `pyenv shell` call.
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
@@ -9,24 +29,93 @@ if [ "$1" = "--complete" ]; then
   exec pyenv-versions --bare
 fi
 
-version="$1"
+versions=("$@")
+shell="$(basename "${PYENV_SHELL:-$SHELL}")"
 
-if [ -z "$version" ]; then
+if [ -z "$versions" ]; then
   if [ -z "$PYENV_VERSION" ]; then
     echo "pyenv: no shell-specific version configured" >&2
     exit 1
   else
-    echo "echo \"\$PYENV_VERSION\""
+    echo 'echo "$PYENV_VERSION"'
     exit
   fi
 fi
 
-if [ "$version" = "--unset" ]; then
-  echo "unset PYENV_VERSION"
-  exit 1
+if [ "$versions" = "--unset" ]; then
+  case "$shell" in
+  fish )
+    echo 'set -gu PYENV_VERSION_OLD "$PYENV_VERSION"'
+    echo "set -e PYENV_VERSION"
+    ;;
+  * )
+    echo 'PYENV_VERSION_OLD="${PYENV_VERSION-}"'
+    echo "unset PYENV_VERSION"
+    ;;
+  esac
+  exit
+fi
+
+if [ "$versions" = "-" ]; then
+  case "$shell" in
+  fish )
+    cat <<EOS
+if set -q PYENV_VERSION_OLD
+  if [ -n "\$PYENV_VERSION_OLD" ]
+    set PYENV_VERSION_OLD_ "\$PYENV_VERSION"
+    set -gx PYENV_VERSION "\$PYENV_VERSION_OLD"
+    set -gu PYENV_VERSION_OLD "\$PYENV_VERSION_OLD_"
+    set -e PYENV_VERSION_OLD_
+  else
+    set -gu PYENV_VERSION_OLD "\$PYENV_VERSION"
+    set -e PYENV_VERSION
+  end
+else
+  echo "pyenv: PYENV_VERSION_OLD is not set" >&2
+  false
+end
+EOS
+    ;;
+  * )
+    cat <<EOS
+if [ -n "\${PYENV_VERSION_OLD+x}" ]; then
+  if [ -n "\$PYENV_VERSION_OLD" ]; then
+    PYENV_VERSION_OLD_="\$PYENV_VERSION"
+    export PYENV_VERSION="\$PYENV_VERSION_OLD"
+    PYENV_VERSION_OLD="\$PYENV_VERSION_OLD_"
+    unset PYENV_VERSION_OLD_
+  else
+    PYENV_VERSION_OLD="\$PYENV_VERSION"
+    unset PYENV_VERSION
+  fi
+else
+  echo "pyenv: PYENV_VERSION_OLD is not set" >&2
+  false
+fi
+EOS
+    ;;
+  esac
+  exit
 fi
 
 # Make sure the specified version is installed.
-pyenv-prefix $version >/dev/null
-
-echo "export PYENV_VERSION=\"${version}\""
+if pyenv-prefix "${versions[@]}" >/dev/null; then
+  OLDIFS="$IFS"
+  IFS=: version="${versions[*]}"
+  IFS="$OLDIFS"
+  if [ "$version" != "$PYENV_VERSION" ]; then
+    case "$shell" in
+    fish )
+      echo 'set -gu PYENV_VERSION_OLD "$PYENV_VERSION"'
+      echo "set -gx PYENV_VERSION \"$version\""
+      ;;
+    * )
+      echo 'PYENV_VERSION_OLD="${PYENV_VERSION-}"'
+      echo "export PYENV_VERSION=\"${version}\""
+      ;;
+    esac
+  fi
+else
+  echo "false"
+  exit 1
+fi

libexec/pyenv-shims

@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
+# Summary: List existing pyenv shims
+# Usage: pyenv shims [--short]
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
@@ -8,6 +11,8 @@ if [ "$1" = "--complete" ]; then
   exit
 fi
 
+shopt -s nullglob
+
 for command in "${PYENV_ROOT}/shims/"*; do
   if [ "$1" = "--short" ]; then
     echo "${command##*/}"

libexec/pyenv-version

@@ -1,9 +1,36 @@
 #!/usr/bin/env bash
+# Summary: Show the current Python version(s) and its origin
+# Usage: pyenv version [--bare]
+#
+#     --bare    show just the version name. An alias to `pyenv version-name'
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
-IFS=: PYENV_VERSION_NAMES=($(pyenv-version-name))
+exitcode=0
+OLDIFS="$IFS"
+IFS=: PYENV_VERSION_NAMES=($(pyenv-version-name)) || exitcode=$?
+IFS="$OLDIFS"
 
-for PYENV_VERSION_NAME in "${PYENV_VERSION_NAMES[@]}"; do
-  echo "$PYENV_VERSION_NAME (set by $(pyenv-version-origin))"
+unset bare
+for arg; do
+    case "$arg" in
+        --complete )
+            echo --bare
+            exit ;;
+        --bare ) bare=1 ;;
+        * )
+          pyenv-help --usage version >&2
+          exit 1
+          ;;
+    esac
 done
+for PYENV_VERSION_NAME in "${PYENV_VERSION_NAMES[@]}"; do
+  if [[ -n $bare ]]; then
+      echo "$PYENV_VERSION_NAME"
+  else
+      echo "$PYENV_VERSION_NAME (set by $(pyenv-version-origin))"
+  fi
+done
+
+exit $exitcode

libexec/pyenv-version-file

@@ -1,24 +1,28 @@
 #!/usr/bin/env bash
+# Usage: pyenv version-file [<dir>]
+# Summary: Detect the file that sets the current pyenv version
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
-root="$PYENV_DIR"
-while [ -n "$root" ]; do
-  if [ -e "${root}/.pyenv-version" ]; then
-    echo "${root}/.pyenv-version"
-    exit
-  fi
-  root="${root%/*}"
-done
+target_dir="$1"
 
-global_version_file="${PYENV_ROOT}/version"
+find_local_version_file() {
+  local root="$1"
+  while ! [[ "$root" =~ ^//[^/]*$ ]]; do
+    if [ -f "${root}/.python-version" ]; then
+      echo "${root}/.python-version"
+      return 0
+    fi
+    [ -n "$root" ] || break
+    root="${root%/*}"
+  done
+  return 1
+}
 
-if [ -e "$global_version_file" ]; then
-  echo "$global_version_file"
-elif [ -e "${PYENV_ROOT}/global" ]; then
-  echo "${PYENV_ROOT}/global"
-elif [ -e "${PYENV_ROOT}/default" ]; then
-  echo "${PYENV_ROOT}/default"
+if [ -n "$target_dir" ]; then
+  find_local_version_file "$target_dir"
 else
-  echo "$global_version_file"
+  find_local_version_file "$PYENV_DIR" || {
+    [ "$PYENV_DIR" != "$PWD" ] && find_local_version_file "$PWD"
+  } || echo "${PYENV_ROOT}/version"
 fi

libexec/pyenv-version-file-read

@@ -1,28 +1,43 @@
 #!/usr/bin/env bash
+# Usage: pyenv version-file-read <file>
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
 VERSION_FILE="$1"
 
-if [ -e "$VERSION_FILE" ]; then
-  # Read and print the first non-whitespace word from the specified
-  # version file.
-  versions=()
-  while read -a words; do
-    word="${words[0]}"
-    if [ -n "$word" ]; then
-      length="${#versions[@]}"
-      versions=("${versions[@]}" "$word")
-    fi
-  done < <( cat "$VERSION_FILE" && echo )
-
-  if [ -n "$versions" ]; then
-    {
-      IFS=:
-      echo "${versions[*]}"
-    }
-    exit
+function is_version_safe() {
+  # As needed, check that the constructed path exists as a child path of PYENV_ROOT/versions
+  version="$1"
+  if [[ "$version" == ".." || "$version" == */* ]]; then
+    # Sanity check the value of version to prevent malicious path-traversal
+    (
+      cd "$PYENV_ROOT/versions/$version" &>/dev/null || exit 1
+      [[ "$PWD" == "$PYENV_ROOT/versions/"* ]]
+    )
+    return $?
+  else
+    return 0
   fi
+}
+
+if [ -s "$VERSION_FILE" ]; then
+  # Read the first non-whitespace word from the specified version file.
+  # Be careful not to load it whole in case there's something crazy in it.
+  IFS="$IFS"$'\r'
+  sep=
+  while read -n 1024 -r version _ || [[ $version ]]; do
+    if [[ -z "$version" || "$version" == \#* ]]; then
+      # Skip empty lines and comments
+      continue
+    elif ! is_version_safe "$version"; then
+      # CVE-2022-35861 allowed arbitrary code execution in some contexts and is mitigated by is_version_safe.
+      echo "pyenv: invalid version \`$version' ignored in \`$VERSION_FILE'" >&2
+      continue
+    fi
+    printf "%s%s" "$sep" "$version"
+    sep=:
+  done <"$VERSION_FILE"
+  [[ $sep ]] && { echo; exit; }
 fi
 
 exit 1

libexec/pyenv-version-file-write

@@ -1,26 +1,40 @@
 #!/usr/bin/env bash
+# Usage: pyenv version-file-write [-f|--force] <file> <version> [...]
+#
+#   -f/--force    Don't verify that the versions exist
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
-PYENV_VERSION_FILE="$1"
-shift
-PYENV_VERSION=()
-for version in "$@"; do
-  PYENV_VERSION=("${PYENV_VERSION[@]}" "$version")
+while [[ $# -gt 0 ]]
+do
+    case "$1" in
+        -f|--force)
+            FORCE=1
+            shift
+            ;;
+        *)
+            break
+            ;;
+    esac
 done
 
-if [ -z "$PYENV_VERSION" ] || [ -z "$PYENV_VERSION_FILE" ]; then
-  echo "usage: pyenv write-version-file FILENAME VERSIONS..." >&2
+
+PYENV_VERSION_FILE="$1"
+shift || true
+versions=("$@")
+
+if [ -z "$versions" ] || [ -z "$PYENV_VERSION_FILE" ]; then
+  pyenv-help --usage version-file-write >&2
   exit 1
 fi
 
 # Make sure the specified version is installed.
-for version in "${PYENV_VERSION[@]}"; do
-  pyenv-prefix "$version" >/dev/null
-done
+[[ -z $FORCE ]] && pyenv-prefix "${versions[@]}" >/dev/null
 
 # Write the version out to disk.
-rm -f "$PYENV_VERSION_FILE"
-for version in "${PYENV_VERSION[@]}"; do
+# Create an empty file. Using "rm" might cause a permission error.
+> "$PYENV_VERSION_FILE"
+for version in "${versions[@]}"; do
   echo "$version" >> "$PYENV_VERSION_FILE"
 done

libexec/pyenv-version-name

@@ -1,24 +1,80 @@
 #!/usr/bin/env bash
+# Summary: Show the current Python version
+#
+#   -f/--force    (Internal) If a version doesn't exist, print it as is rather than produce an error
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
+while [[ $# -gt 0 ]]
+do
+    case "$1" in
+        -f|--force)
+            FORCE=1
+            shift
+            ;;
+        *)
+            break
+            ;;
+    esac
+done
+
+
 if [ -z "$PYENV_VERSION" ]; then
   PYENV_VERSION_FILE="$(pyenv-version-file)"
-  IFS=: PYENV_VERSION=($(pyenv-version-file-read "$PYENV_VERSION_FILE" || true))
+  PYENV_VERSION="$(pyenv-version-file-read "$PYENV_VERSION_FILE" || true)"
 fi
 
-if [ -z "$PYENV_VERSION" ] || [ "$PYENV_VERSION" = "system" ] ; then
+OLDIFS="$IFS"
+IFS=$'\n' scripts=(`pyenv-hooks version-name`)
+IFS="$OLDIFS"
+for script in "${scripts[@]}"; do
+  source "$script"
+done
+
+if [ -z "$PYENV_VERSION" ] || [ "$PYENV_VERSION" = "system" ]; then
   echo "system"
   exit
 fi
 
-for version in "${PYENV_VERSION[@]}"; do
-  PYENV_VERSION_PATH="${PYENV_ROOT}/versions/${version}"
-  
-  if [ ! -d "$PYENV_VERSION_PATH" ]; then
-    echo "pyenv: version \`$version' is not installed" >&2
-    exit 1
-  fi
-done
+version_exists() {
+  local version="$1"
+  [ -d "${PYENV_ROOT}/versions/${version}" ]
+}
 
-IFS=: echo "${PYENV_VERSION[*]}"
+versions=()
+OLDIFS="$IFS"
+{ IFS=:
+  any_not_installed=0
+  for version in ${PYENV_VERSION}; do
+    # Remove the explicit 'python-' prefix from versions like 'python-3.12'.
+    normalised_version="${version#python-}"
+    if version_exists "${version}" || [ "$version" = "system" ]; then
+      versions+=("${version}")
+    elif version_exists "${normalised_version}"; then
+      versions+=("${normalised_version}")
+    elif resolved_version="$(pyenv-latest -b "${version}")"; then
+      versions+=("${resolved_version}")
+    elif resolved_version="$(pyenv-latest -b "${normalised_version}")"; then
+      versions+=("${resolved_version}")
+    else
+      if [[ -n $FORCE ]]; then
+        versions+=("${normalised_version}")
+      else
+        echo "pyenv: version \`$version' is not installed (set by $(pyenv-version-origin))" >&2
+        any_not_installed=1
+      fi
+    fi
+  done
+}
+IFS="$OLDIFS"
+
+OLDIFS="$IFS"
+{ IFS=:
+  echo "${versions[*]}"
+}
+IFS="$OLDIFS"
+
+if [ "$any_not_installed" = 1 ]; then
+  exit 1
+fi

libexec/pyenv-version-origin

@@ -1,8 +1,20 @@
 #!/usr/bin/env bash
+# Summary: Explain how the current Python version is set
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
-if [ -n "$PYENV_VERSION" ]; then
+unset PYENV_VERSION_ORIGIN
+
+OLDIFS="$IFS"
+IFS=$'\n' scripts=(`pyenv-hooks version-origin`)
+IFS="$OLDIFS"
+for script in "${scripts[@]}"; do
+  source "$script"
+done
+
+if [ -n "$PYENV_VERSION_ORIGIN" ]; then
+  echo "$PYENV_VERSION_ORIGIN"
+elif [ -n "$PYENV_VERSION" ]; then
   echo "PYENV_VERSION environment variable"
 else
   pyenv-version-file

libexec/pyenv-versions

@@ -1,27 +1,173 @@
 #!/usr/bin/env bash
+# Summary: List all Python versions available to pyenv
+# Usage: pyenv versions [--bare] [--skip-aliases] [--skip-envs]
+#
+# Lists all Python versions found in `$PYENV_ROOT/versions/*'.
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
-IFS=: PYENV_VERSION_NAMES=($(pyenv-version-name))
+unset bare skip_aliases skip_envs
+# Provide pyenv completions
+for arg; do
+  case "$arg" in
+  --complete )
+    echo --bare
+    echo --skip-aliases
+    echo --skip-envs
+    exit ;;
+  --bare ) bare=1 ;;
+  --skip-aliases ) skip_aliases=1 ;;
+  --skip-envs ) skip_envs=1 ;;
+  * )
+    pyenv-help --usage versions >&2
+    exit 1
+    ;;
+  esac
+done
 
-if [ "$1" = "--bare" ]; then
-  hit_prefix=""
-  miss_prefix=""
-  print_version="$PYENV_VERSION_NAMES"
+versions_dir="${PYENV_ROOT}/versions"
+
+if ! enable -f "${BASH_SOURCE%/*}"/pyenv-realpath.dylib realpath 2>/dev/null; then
+  if [ -n "$PYENV_NATIVE_EXT" ]; then
+    echo "pyenv: failed to load \`realpath' builtin" >&2
+    exit 1
+  fi
+
+  READLINK=$(type -P readlink)
+  if [ -z "$READLINK" ]; then
+    echo "pyenv: cannot find readlink - are you missing GNU coreutils?" >&2
+    exit 1
+  fi
+
+  resolve_link() {
+    $READLINK "$1"
+  }
+
+  realpath() {
+    local path="$1"
+    local name
+
+    # Use a subshell to avoid changing the current path
+    (
+    while [ -n "$path" ]; do
+      name="${path##*/}"
+      [ "$name" = "$path" ] || cd "${path%/*}"
+      path="$(resolve_link "$name" || true)"
+    done
+
+    echo "${PWD}/$name"
+    )
+  }
+fi
+
+if [ -d "$versions_dir" ]; then
+  versions_dir="$(realpath "$versions_dir")"
+fi
+
+if ((${BASH_VERSINFO[0]} > 3)); then
+  declare -A current_versions
+else
+  current_versions=()
+fi
+if [ -n "$bare" ]; then
+  include_system=""
 else
   hit_prefix="* "
   miss_prefix="  "
-  print_version="$PYENV_VERSION_NAMES (set by $(pyenv-version-origin))"
+  OLDIFS="$IFS"
+  IFS=:
+  if ((${BASH_VERSINFO[0]} > 3)); then
+    for i in $(pyenv-version-name || true); do
+      current_versions["$i"]="1"
+    done
+  else
+    current_versions=($(pyenv-version-name || true))
+  fi
+  IFS="$OLDIFS"
+  include_system="1"
 fi
 
-for path in "${PYENV_ROOT}/versions/"*; do
-  if [ -d "$path" ]; then
-    version="${path##*/}"
+num_versions=0
 
-    if [ "$version" == "$PYENV_VERSION_NAMES" ]; then
-      echo "${hit_prefix}${print_version}"
-    else
-      echo "${miss_prefix}${version}"
+exists() {
+  local car="$1"
+  local cdar
+  shift
+  for cdar in "$@"; do
+    if [ "${car}" == "${cdar}" ]; then
+      return 0
+    fi
+  done
+  return 1
+}
+
+print_version() {
+  local version="${1:?}"
+  if [[ -n $bare ]]; then
+    echo "$version"
+    return
+  fi
+  local path="${2:?}"
+  if [[ -L "$path" ]]; then
+    # Only resolve the link itself for printing, do not resolve further.
+    # Doing otherwise would misinform the user of what the link contains.
+    version_repr="$version --> $(readlink "$path")"
+  else
+    version_repr="$version"
+  fi
+  if [[ ${BASH_VERSINFO[0]} -ge 4 && ${current_versions["$1"]} ]]; then
+    echo "${hit_prefix}${version_repr} (set by $(pyenv-version-origin))"
+  elif (( ${BASH_VERSINFO[0]} <= 3 )) && exists "$1" "${current_versions[@]}"; then
+    echo "${hit_prefix}${version_repr} (set by $(pyenv-version-origin))"
+  else
+    echo "${miss_prefix}${version_repr}"
+  fi
+  num_versions=$((num_versions + 1))
+}
+
+# Include "system" in the non-bare output, if it exists
+if [ -n "$include_system" ] && \
+    (PYENV_VERSION=system pyenv-which python --skip-advice >/dev/null 2>&1 || \
+     PYENV_VERSION=system pyenv-which python3 --skip-advice >/dev/null 2>&1 || \
+     PYENV_VERSION=system pyenv-which python2 --skip-advice >/dev/null 2>&1) ; then
+  print_version system "/"
+fi
+
+shopt -s dotglob nullglob
+versions_dir_entries=("$versions_dir"/*)
+if sort --version-sort </dev/null >/dev/null 2>&1; then
+    # system sort supports version sorting
+    OLDIFS="$IFS"
+    IFS=$'\n'
+    versions_dir_entries=($(
+        printf "%s\n" "${versions_dir_entries[@]}" |
+        sort --version-sort
+    ))
+    IFS="$OLDIFS"
+fi
+
+for path in "${versions_dir_entries[@]}"; do
+  if [ -d "$path" ]; then
+    if [ -n "$skip_aliases" ] && [ -L "$path" ]; then
+      target="$(realpath "$path")"
+      [ "${target%/*}" == "$versions_dir" ] && continue
+      [ "${target%/*/envs/*}" == "$versions_dir" ] && continue
+    fi
+    print_version "${path##*/}" "$path"
+    # virtual environments created by anaconda/miniconda/pyenv-virtualenv
+    if [[ -z $skip_envs ]]; then
+      for env_path in "${path}/envs/"*; do
+        if [ -d "${env_path}" ]; then
+          print_version "${env_path#${PYENV_ROOT}/versions/}" "${env_path}"
+        fi
+      done
     fi
   fi
 done
+shopt -u dotglob nullglob
+
+if [ "$num_versions" -eq 0 ] && [ -n "$include_system" ]; then
+  echo "Warning: no Python detected on the system" >&2
+  exit 1
+fi

libexec/pyenv-whence

@@ -1,11 +1,14 @@
 #!/usr/bin/env bash
+# Summary: List all Python versions that contain the given executable
+# Usage: pyenv whence [--path] <command>
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
 # Provide pyenv completions
 if [ "$1" = "--complete" ]; then
   echo --path
-  exec pyenv shims --short
+  exec pyenv-shims --short
 fi
 
 if [ "$1" = "--path" ]; then
@@ -17,7 +20,7 @@ fi
 
 whence() {
   local command="$1"
-  pyenv-versions --bare | while read version; do
+  pyenv-versions --bare | while read -r version; do
     path="$(pyenv-prefix "$version")/bin/${command}"
     if [ -x "$path" ]; then
       [ "$print_paths" ] && echo "$path" || echo "$version"
@@ -27,7 +30,7 @@ whence() {
 
 PYENV_COMMAND="$1"
 if [ -z "$PYENV_COMMAND" ]; then
-  echo "usage: pyenv whence [--path] COMMAND" >&2
+  pyenv-help --usage whence >&2
   exit 1
 fi
 

libexec/pyenv-which

@@ -1,73 +1,116 @@
 #!/usr/bin/env bash
+#
+# Summary: Display the full path to an executable
+#
+# Usage: pyenv which <command> [--nosystem] [--skip-advice]
+#
+# Displays the full path to the executable that pyenv will invoke when
+# you run the given command.
+# Use --nosystem argument in case when you don't need to search command in the 
+# system environment.
+# Internal switch --skip-advice used to skip printing an error message on a
+# failed search.
+
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
 # Provide pyenv completions
 if [ "$1" = "--complete" ]; then
-  exec pyenv shims --short
+  exec pyenv-shims --short
 fi
 
-expand_path() {
-  if [ ! -d "$1" ]; then
-    return 1
-  fi
-
-  local cwd="$(pwd)"
-  cd "$1"
-  pwd
-  cd "$cwd"
-}
-
-remove_from_path() {
-  local path_to_remove="$(expand_path "$1")"
-  local result=""
-
-  if [ -z "$path_to_remove" ]; then
-    echo "${PATH}"
-    return
-  fi
-
-  local paths
-  IFS=: paths=($PATH)
-
-  for path in "${paths[@]}"; do
-    path="$(expand_path "$path" || true)"
-    if [ -n "$path" ] && [ "$path" != "$path_to_remove" ]; then
-      result="${result}${path}:"
-    fi
-  done
-
-  echo "${result%:}"
-}
-
-IFS=: versions=($(pyenv-version-name))
-PYENV_VERSION=("${versions[@]}")
+system="system"
+SKIP_ADVICE=""
 PYENV_COMMAND="$1"
 
+while [[ $# -gt 0 ]]
+do
+  case "$1" in
+    --skip-advice)
+      SKIP_ADVICE=1
+      shift
+      ;;
+    --nosystem)
+      system=""
+      shift
+      ;;
+    *)
+      shift
+      ;;
+  esac
+done
+
+
+remove_from_path() {
+  local path_to_remove="$1"
+  local path_before
+  local result=":${PATH//\~/$HOME}:"
+  while [ "$path_before" != "$result" ]; do
+    path_before="$result"
+    result="${result//:$path_to_remove:/:}"
+  done
+  result="${result%:}"
+  echo "${result#:}"
+}
+
 if [ -z "$PYENV_COMMAND" ]; then
-  echo "usage: pyenv which COMMAND" >&2
+  pyenv-help --usage which >&2
   exit 1
 fi
 
-for version in "${PYENV_VERSION[@]}"; do
+OLDIFS="$IFS"
+IFS=: versions=(${PYENV_VERSION:-$(pyenv-version-name -f)})
+IFS="$OLDIFS"
+
+declare -a nonexistent_versions
+
+for version in "${versions[@]}" "$system"; do
   if [ "$version" = "system" ]; then
-    PATH="$(remote_from_path "${PYENV_ROOT}/shims")"
-    PYENV_COMMAND_PATH="$(command -v "$PYENV_COMMAND")"
+    PATH="$(remove_from_path "${PYENV_ROOT}/shims")"
+    PYENV_COMMAND_PATH="$(command -v "$PYENV_COMMAND" || true)"
   else
-    PYENV_COMMAND_PATH="${PYENV_ROOT}/versions/${version}/bin/${PYENV_COMMAND}"
-    if [ -x "$PYENV_COMMAND_PATH" ]; then
-      break
-    fi
+    # $version may be a prefix to be resolved by pyenv-latest
+    version_path="$(pyenv-prefix "${version}" 2>/dev/null)" || \
+        { nonexistent_versions+=("$version"); continue; }
+    # resolve $version for hooks
+    version="$(basename "$version_path")"
+    PYENV_COMMAND_PATH="$version_path/bin/${PYENV_COMMAND}"
+    unset version_path
+  fi
+  if [ -x "$PYENV_COMMAND_PATH" ]; then
+    break
   fi
 done
 
-for script in $(pyenv-hooks which); do
+OLDIFS="$IFS"
+IFS=$'\n' scripts=(`pyenv-hooks which`)
+IFS="$OLDIFS"
+for script in "${scripts[@]}"; do
   source "$script"
 done
 
 if [ -x "$PYENV_COMMAND_PATH" ]; then
   echo "$PYENV_COMMAND_PATH"
 else
+  if (( ${#nonexistent_versions[@]} )); then
+    for version in "${nonexistent_versions[@]}"; do
+      echo "pyenv: version \`$version' is not installed (set by $(pyenv-version-origin))" >&2
+    done
+  fi
+
   echo "pyenv: $PYENV_COMMAND: command not found" >&2
+  if [ -z "$SKIP_ADVICE" ]; then
+    versions="$(pyenv-whence "$PYENV_COMMAND" || true)"
+    if [ -n "$versions" ]; then
+      { echo
+        echo "The \`$PYENV_COMMAND' command exists in these Python versions:"
+        echo "$versions" | sed 's/^/  /g'
+        echo
+        echo "Note: See 'pyenv help global' for tips on allowing both"
+        echo "      python2 and python3 to be found."
+      } >&2
+    fi
+  fi
+
   exit 127
 fi

man/man1/pyenv.1

@@ -0,0 +1,550 @@
+.TH PYENV 1 "24 Apr 2023" "PYENV"
+.SH NAME
+pyenv \- Simple Python version management
+.SH SYNOPSIS
+.B pyenv
+\fI\,<command> \/\fR[\fI\,<args>\/\fR]
+.SH DESCRIPTION
+pyenv lets you easily switch between multiple versions of Python\. It's simple, unobtrusive, and follows the UNIX tradition of single\-purpose tools that do one thing well\.
+.P
+ To start using pyenv
+.IP "1." 3
+\fBAppend\fR the following to \fB$HOME/.bashrc\fR
+.P
+.RS 15
+.nf
+if command -v pyenv 1>/dev/null 2>&1; then\n
+   eval "$(pyenv init - bash)" \n
+fi
+.fi
+.RE
+.RS 3
+.P
+.nh
+Appending this line enables shims. Please make sure this line is placed toward the end of the shell configuration file since it manipulates \fBPATH\fR during the initialization\. 
+.hy
+.TP 13
+.B Debian note:
+Modify only your \fB~/\.bashrc\fR file instead of creating 
+.br
+\fB~/\.bash_profile\fR
+.P
+.RS 0
+\fBZsh note\fR: Modify your \fB~/\.zshrc\fR file instead of  \fB~/\.bashrc\fR
+.P
+\fBWarning\fR: If you configured your system so  that \fBBASH_ENV\fR variable  points to \fB\.bashrc\fR\. You should almost certainly put the above mentioned line  into \fB\.bash_profile\fR, and \fBnot\fR into \fB\.bashrc\fR. Otherwise you may observe strange behaviour, such as \fBpyenv\fR getting into an infinite loop. See #264 
+.UR https://github\.com/pyenv/pyenv/issues/264
+.UE
+for details.
+.RE
+.RE
+.IP "2." 3
+\fBRestart your shell so the path changes take effect\.\fR You can now begin using pyenv\. 
+.P
+.RS 15
+exec "$SHELL"\fR
+.RE
+.IP "3." 3
+\fBInstall Python versions into \fB$(pyenv root)/versions\fR\.\fR For example, to download and install Python 3\.6\.12, run:
+.P
+.RS 15
+.B pyenv install 3.6.12\fR 
+.RE
+.P
+\fBNOTE:\fR If you need to pass configure option to build, please use \fBCONFIGURE_OPTS\fR environment variable. If you are having trouble installing a python version, please visit the wiki page about Common Build Problems
+.UR https://github\.com/pyenv/pyenv/wiki/Common\-build\-problems
+.UE
+.P
+\fBProxy note\fR: If you use a proxy, export \fBHTTP_PROXY\fR and \fBHTTPS_PROXY\fR environment variables.
+.P
+.SS "Stop using pyenv"
+The simplicity of pyenv makes it easy to temporarily disable it, or uninstall from the system\.
+To \fBdisable\fR pyenv managing your Python versions, simply remove the \fBpyenv init\fR line from your shell startup configuration\. This will remove pyenv shims directory from PATH, and future invocations like \fBpython\fR will execute the system Python version, as before pyenv\.
+.IP "" 0
+.P
+\fBpyenv\fR will still be accessible on the command line, but your Python apps won't be affected by version switching\.
+.IP "" 0
+.SH COMMAND LINE OPTIONS
+Like \fBgit\fR, the \fBpyenv\fR command delegates to subcommands based on its first argument\.
+.SS "Some useful pyenv commands are:"
+.TP 5
+.B commands
+List all available pyenv commands
+.TP
+.B exec
+Run an executable with the selected Python version
+.TP
+.B global
+Set or show the global Python version(s)
+.TP
+.B help
+Display help for a command
+.TP
+.B hooks
+List hook scripts for a given pyenv command
+.TP
+.B init
+Configure the shell environment for pyenv
+.TP
+.B install
+Install a Python version using python\-build
+.TP
+.B local
+Set or show the local application\-specific Python version(s)
+.TP
+.B prefix
+Display prefix for a Python version
+.TP
+.B rehash
+Rehash pyenv shims (run this after installing executables)
+.TP
+.B root
+Display the root directory where versions and shims are kept
+.TP
+.B shell
+Set or show the shell\-specific Python version
+.TP
+.B shims
+List existing pyenv shims
+.TP
+.B uninstall
+Uninstall Python versions
+.TP
+.B version
+Show the current Python version(s) and its origin
+.TP
+.B version\-file
+Detect the file that sets the current pyenv version
+.TP
+.B version\-name
+Show the current Python version
+.TP
+.B version\-origin
+Explain how the current Python version is set
+.TP
+.B versions
+List all Python versions available to pyenv
+.TP
+.B whence
+List all Python versions that contain the given executable
+.TP
+.B which
+Display the full path to an executable
+.PP
+See `pyenv help <command>' for information on a specific command.
+For full documentation, see \fBCOMMAND REFERENCE\fR section 
+.SH OPTIONS
+.TP
+.B \-h, \-\-help
+Show summary of options.
+.TP
+.B \-v, \-\-version
+Show version of program.
+.SH COMPARISON
+.P
+.B "pyenv does\|\.\|\.\|\.
+.P
+.IP \(bu 4
+Let you \fBchange the global Python version\fR on a per\-user basis\.
+.IP \(bu 4
+Provide support for \fBper\-project Python versions\fR\.
+.IP \(bu 4
+Allow you to \fBoverride the Python version\fR with an environment variable\.
+.IP \(bu 4
+Search commands from \fBmultiple versions of Python at a time\fR\. This may be helpful to test across Python versions with tox
+.IP "" 0
+.P
+.B "In contrast with pythonbrew and pythonz, pyenv does not\|\.\|\.\|\."
+.IP \(bu 4
+\fBDepend on Python itself\.\fR pyenv was made from pure shell scripts\. There is no bootstrap problem of Python\.
+.IP \(bu 4
+\fBNeed to be loaded into your shell\.\fR Instead, pyenv's shim approach works by adding a directory to your \fB$PATH\fR\.
+.IP \(bu 4
+\fBManage virtualenv\.\fR Of course, you can create virtualenv  yourself, or pyenv\-virtualenv  to automate the process\.
+.SH "How It Works"
+At a high level, pyenv intercepts Python commands using shim executables injected into your \fBPATH\fR, determines which Python version has been specified by your application, and passes your commands along to the correct Python installation\.
+.SS "Understanding PATH"
+When you run a command like \fBpython\fR or \fBpip\fR, your operating system searches through a list of directories to find an executable file with that name\. This list of directories lives in an environment variable called \fBPATH\fR, with each directory in the list separated by a colon:
+.IP "" 4
+.nf
+/usr/local/bin:/usr/bin:/bin
+.fi
+.IP "" 0
+.P
+Directories in \fBPATH\fR are searched from left to right, so a matching executable in a directory at the beginning of the list takes precedence over another one at the end\. In this example, the \fB/usr/local/bin\fR directory will be searched first, then \fB/usr/bin\fR, then \fB/bin\fR\.
+.SS "Understanding Shims"
+pyenv works by inserting a directory of \fIshims\fR at the front of your \fBPATH\fR:
+.IP "" 4
+.nf
+$(pyenv root)/shims:/usr/local/bin:/usr/bin:/bin
+.fi
+.IP "" 0
+.P
+Through a process called \fIrehashing\fR, pyenv maintains shims in that directory to match every Python command (\fBpython\fR,\fBpip\fR,etc...) across every installed version of Python 
+.P
+Shims are lightweight executables that simply pass your command along to pyenv\. So with pyenv installed, when you run, say, \fBpip\fR, your operating system will do the following:
+.IP \(bu 4
+Search your \fBPATH\fR for an executable file named \fBpip\fR
+.IP \(bu 4
+Find the pyenv shim named \fBpip\fR at the beginning of your \fBPATH\fR
+.IP \(bu 4
+Run the shim named \fBpip\fR, which in turn passes the command along to pyenv
+.IP "" 0
+.SS "Choosing the Python Version"
+When you execute a shim, pyenv determines which Python version to use by reading it from the following sources, in this order:
+.IP "1." 4
+The \fBPYENV_VERSION\fR environment variable (if specified)\. You can use the \fBpyenv shell\fR command to set this environment variable in your current shell session\.
+.IP "2." 4
+The application\-specific \fB\.python\-version\fR file in the current directory (if present)\. You can modify the current directory's \fB\.python\-version\fR file with the \fBpyenv local\fR command\.
+.IP "3." 4
+The first \fB\.python\-version\fR file found (if any) by searching each parent directory, until reaching the root of your filesystem\.
+.IP "4." 4
+The global \fB$(pyenv root)/version\fR file\. You can modify this file using the \fBpyenv global\fR  command\. If the global version file is not present, pyenv assumes you want to use the "system" Python\. (In other words, whatever version would run if pyenv weren't in your \fBPATH\fR\.)
+.IP "" 0
+.P
+.nh
+\fBNOTE:\fR You can activate multiple versions at the same time, including multiple versions of Python2 or Python3 simultaneously\. This allows for parallel usage of Python2 and Python3, and is required with tools like \fBtox\fR\. For example, to set your path to first use your \fBsystem\fR Python and Python3 (set to 2\.7\.9 and 3\.4\.2 in this example), but also have Python 3\.3\.6, 3\.2, and 2\.5 available on your \fBPATH\fR, one would first \fBpyenv install\fR the missing versions, then set \fBpyenv global system 3\.3\.6 3\.2 2\.5\fR\. At this point, one should be able to find the full executable path to each of these using \fBpyenv which\fR, e\.g\. \fBpyenv which python2\.5\fR (should display \fB$(pyenv root)/versions/2\.5/bin/python2\.5\fR), or \fBpyenv which python3\.4\fR (should display path to system Python3)\. You can also specify multiple versions in a \fB\.python\-version\fR file, separated by newlines or any whitespace\.
+hy
+.SS "Locating the Python Installation"
+Once pyenv has determined which version of Python your application has specified, it passes the command along to the corresponding Python installation\.
+.P
+Each Python version is installed into its own directory under 
+.nf
+\fB$(pyenv root)/versions\fR\.
+.fi
+.P
+For example, you might have these versions installed:
+.IP \(bu 4
+\fB$(pyenv root)/versions/2\.7\.8/\fR
+.IP \(bu 4
+\fB$(pyenv root)/versions/3\.4\.2/\fR
+.IP \(bu 4
+\fB$(pyenv root)/versions/pypy\-2\.4\.0/\fR
+.IP "" 0
+.P
+As far as pyenv is concerned, version names are simply the directories in \fB$(pyenv root)/versions\fR\.
+.SS "Managing Virtual Environments"
+There is a pyenv plugin named pyenv\-virtualenv which comes with various features to help pyenv users to manage virtual environments created by virtualenv or Anaconda\. Because the \fBactivate\fR script of those virtual environments are relying on mutating \fB$PATH\fR variable of user's interactive shell, it will intercept pyenv's shim style command execution hooks\. We'd recommend to install pyenv\-virtualenv as well if you have some plan to play with those virtual environments\.
+
+.SH "Advanced Configuration"
+Skip this section unless you must know what every line in your shell profile is doing\.
+.P
+\fBpyenv init\fR is the only command that crosses the line of loading extra commands into your shell\. Coming from rvm, some of you might be opposed to this idea\. Here's what \fBpyenv init\fR actually does:
+.IP "1." 4
+\fBSets up your shims path\.\fR This is the only requirement for pyenv to function properly\. You can do this by hand by prepending \fB$(pyenv root)/shims\fR to your \fB$PATH\fR\.
+.IP "2." 4
+\fBRehashes shims\.\fR From time to time you'll need to rebuild your shim files\. Doing this on init makes sure everything is up to date\. You can always run \fBpyenv rehash\fR manually\.
+You can disable this functionality by adding \fB--no-rehash\fR to the end of your \fBpyenv init\fR command line.
+.IP "3." 4
+\fBInstalls the sh dispatcher\.\fR This bit is also optional, but allows pyenv and plugins to change variables in your current shell, making commands like \fBpyenv shell\fR possible\. The sh dispatcher doesn't do anything crazy like override \fBcd\fR or hack your shell prompt, but if for some reason you need \fBpyenv\fR to be a real script rather than a shell function, you can safely skip it\.
+.IP "" 0
+.P
+To see exactly what happens under the hood for yourself, run \fB"pyenv init \-"\fR\.
+.SH "Uninstalling Python Versions"
+As time goes on, you will accumulate Python versions in your \fB$(pyenv root)/versions\fR directory\.
+.P
+To remove old Python versions, \fBpyenv uninstall\fR command to automate the removal process\.
+.P
+Alternatively, simply \fBrm \-rf\fR the directory of the version you want to remove\. You can find the directory of a particular Python version with the \fBpyenv prefix\fR command, 
+.P
+e\.g\. \fBpyenv prefix 2\.6\.8\fR\.
+.SH "Command Reference"
+.P
+The most common subcommands are:
+.SS "pyenv commands"
+Lists all available pyenv commands\.
+.SS "pyenv local"
+Sets a local application\-specific Python version by writing the version name to a \fB\.python\-version\fR file in the current directory\. This version overrides the global version, and can be overridden itself by setting the \fBPYENV_VERSION\fR environment variable or with the \fBpyenv shell\fR command\.
+.IP "" 4
+.nf
+$ pyenv local 2\.7\.6
+.fi
+.IP "" 0
+.P
+When run without a version number, \fBpyenv local\fR reports the currently configured local version\. You can also unset the local version:
+.IP "" 4
+.nf
+$ pyenv local \-\-unset
+.fi
+.IP "" 0
+.P
+Previous versions of pyenv stored local version specifications in a file named \fB\.pyenv\-version\fR\. For backwards compatibility, pyenv will read a local version specified in an \fB\.pyenv\-version\fR file, but a \fB\.python\-version\fR file in the same directory will take precedence\.
+.P
+You can specify multiple versions as local Python at once\.
+.P
+Let's say if you have two versions of 2\.7\.6 and 3\.3\.3\. If you prefer 2\.7\.6 over 3\.3\.3,
+.IP "" 4
+.nf
+$ pyenv local 2\.7\.6 3\.3\.3
+$ pyenv versions
+  system
+* 2\.7\.6 (set by /Users/yyuu/path/to/project/\.python\-version)
+* 3\.3\.3 (set by /Users/yyuu/path/to/project/\.python\-version)
+$ python \-\-version
+Python 2\.7\.6
+$ python2\.7 \-\-version
+Python 2\.7\.6
+$ python3\.3 \-\-version
+Python 3\.3\.3
+.fi
+.IP "" 0
+.P
+or, if you prefer 3\.3\.3 over 2\.7\.6,
+.IP "" 4
+.nf
+$ pyenv local 3\.3\.3 2\.7\.6
+$ pyenv versions
+  system
+* 2\.7\.6 (set by /Users/yyuu/path/to/project/\.python\-version)
+* 3\.3\.3 (set by /Users/yyuu/path/to/project/\.python\-version)
+  venv27
+$ python \-\-version
+Python 3\.3\.3
+$ python2\.7 \-\-version
+Python 2\.7\.6
+$ python3\.3 \-\-version
+Python 3\.3\.3
+.fi
+.IP "" 0
+.SS "pyenv global"
+Sets the global version of Python to be used in all shells by writing the version name to the \fB~/\.pyenv/version\fR file\. This version can be overridden by an application\-specific \fB\.python\-version\fR file, or by setting the \fBPYENV_VERSION\fR environment variable\.
+.IP "" 4
+.nf
+$ pyenv global 2\.7\.6
+.fi
+.IP "" 0
+.P
+The special version name \fBsystem\fR tells pyenv to use the system Python (detected by searching your \fB$PATH\fR)\.
+.P
+When run without a version number, \fBpyenv global\fR reports the currently configured global version\.
+.P
+You can specify multiple versions as global Python at once\.
+.P
+Let's say if you have two versions of 2\.7\.6 and 3\.3\.3\. If you prefer 2\.7\.6 over 3\.3\.3,
+.IP "" 4
+.nf
+$ pyenv global 2\.7\.6 3\.3\.3
+$ pyenv versions
+  system
+* 2\.7\.6 (set by /Users/yyuu/\.pyenv/version)
+* 3\.3\.3 (set by /Users/yyuu/\.pyenv/version)
+$ python \-\-version
+Python 2\.7\.6
+$ python2\.7 \-\-version
+Python 2\.7\.6
+$ python3\.3 \-\-version
+Python 3\.3\.3
+.fi
+.IP "" 0
+.P
+or, if you prefer 3\.3\.3 over 2\.7\.6,
+.IP "" 4
+.nf
+$ pyenv global 3\.3\.3 2\.7\.6
+$ pyenv versions
+  system
+* 2\.7\.6 (set by /Users/yyuu/\.pyenv/version)
+* 3\.3\.3 (set by /Users/yyuu/\.pyenv/version)
+  venv27
+$ python \-\-version
+Python 3\.3\.3
+$ python2\.7 \-\-version
+Python 2\.7\.6
+$ python3\.3 \-\-version
+Python 3\.3\.3
+.fi
+.IP "" 0
+.SS "pyenv shell"
+Sets a shell\-specific Python version by setting the \fBPYENV_VERSION\fR environment variable in your shell\. This version overrides application\-specific versions and the global version\.
+.IP "" 4
+.nf
+$ pyenv shell pypy\-2\.2\.1
+.fi
+.IP "" 0
+.P
+When run without a version number, \fBpyenv shell\fR reports the current value of \fBPYENV_VERSION\fR\. You can also unset the shell version:
+.IP "" 4
+.nf
+$ pyenv shell \-\-unset
+.fi
+.IP "" 0
+.P
+Note that you'll need pyenv's shell integration enabled (step 3 of the installation instructions) in order to use this command\. If you prefer not to use shell integration, you may simply set the \fBPYENV_VERSION\fR variable yourself:
+.IP "" 4
+.nf
+$ export PYENV_VERSION=pypy\-2\.2\.1
+.fi
+.IP "" 0
+.P
+You can specify multiple versions via \fBPYENV_VERSION\fR at once\.
+.P
+Let's say if you have two versions of 2\.7\.6 and 3\.3\.3\. If you prefer 2\.7\.6 over 3\.3\.3,
+.IP "" 4
+.nf
+$ pyenv shell 2\.7\.6 3\.3\.3
+$ pyenv versions
+  system
+* 2\.7\.6 (set by PYENV_VERSION environment variable)
+* 3\.3\.3 (set by PYENV_VERSION environment variable)
+$ python \-\-version
+Python 2\.7\.6
+$ python2\.7 \-\-version
+Python 2\.7\.6
+$ python3\.3 \-\-version
+Python 3\.3\.3
+.fi
+.IP "" 0
+.P
+or, if you prefer 3\.3\.3 over 2\.7\.6,
+.IP "" 4
+.nf
+$ pyenv shell 3\.3\.3 2\.7\.6
+$ pyenv versions
+  system
+* 2\.7\.6 (set by PYENV_VERSION environment variable)
+* 3\.3\.3 (set by PYENV_VERSION environment variable)
+  venv27
+$ python \-\-version
+Python 3\.3\.3
+$ python2\.7 \-\-version
+Python 2\.7\.6
+$ python3\.3 \-\-version
+Python 3\.3\.3
+.fi
+.IP "" 0
+.SS "pyenv install"
+Install a Python version 
+.IP "" 4
+.nf
+Usage: pyenv install [\-f] [\-kvp] <version>
+       pyenv install [\-f] [\-kvp] <definition\-file>
+       pyenv install \-l|\-\-list
+
+  \-l, \-\-list             List all available versions
+  \-f, \-\-force            Install even if the version appears to be installed 
+  					already
+  \-s, \-\-skip\-existing    Skip the installation if the version appears to be
+  					installed already
+
+  python\-build options:
+
+  \-k, \-\-keep        Keep source tree in $PYENV_BUILD_ROOT after installation
+                    (defaults to $PYENV_ROOT/sources)
+  \-v, \-\-verbose     Verbose mode: print compilation status to stdout
+  \-p, \-\-patch       Apply a patch from stdin before building
+  \-g, \-\-debug       Build a debug version
+.fi
+.IP "" 0
+.P
+To list the all available versions of Python, including Anaconda, Jython, pypy, and stackless, use:
+.IP "" 4
+.nf
+$ pyenv install \-\-list
+.fi
+.IP "" 0
+.P
+Then install the desired versions:
+.IP "" 4
+.nf
+$ pyenv install 2\.7\.6
+$ pyenv install 2\.6\.8
+$ pyenv versions
+  system
+  2\.6\.8
+* 2\.7\.6 (set by /home/yyuu/\.pyenv/version)
+.fi
+.IP "" 0
+.SS "pyenv uninstall"
+Uninstall Python versions\.
+.IP "" 4
+.nf
+Usage: pyenv uninstall [\-f|\-\-force] <version> ...
+
+   \-f  Attempt to remove the specified version without prompting
+       for confirmation\. If the version does not exist, do not
+       display an error message\.
+.fi
+.IP "" 0
+.SS "pyenv rehash"
+Installs shims for all Python binaries known to pyenv (i\.e\., \fB~/\.pyenv/versions/*/bin/*\fR)\. Run this command after you install a new version of Python, or install a package that provides binaries\.
+.IP "" 4
+.nf
+$ pyenv rehash
+.fi
+.IP "" 0
+.SS "pyenv version"
+Displays the currently active Python version, along with information on how it was set\.
+.IP "" 4
+.nf
+$ pyenv version
+2\.7\.6 (set by /home/yyuu/\.pyenv/version)
+.fi
+.IP "" 0
+.SS "pyenv versions"
+Lists all Python versions known to pyenv, and shows an asterisk next to the currently active version\.
+.IP "" 4
+.nf
+$ pyenv versions
+  2\.5\.6
+  2\.6\.8
+* 2\.7\.6 (set by /home/yyuu/\.pyenv/version)
+  3\.3\.3
+  jython\-2\.5\.3
+  pypy\-2\.2\.1
+.fi
+.IP "" 0
+.SS "pyenv which"
+Displays the full path to the executable that pyenv will invoke when you run the given command\.
+.IP "" 4
+.nf
+$ pyenv which python3\.3
+/home/yyuu/\.pyenv/versions/3\.3\.3/bin/python3\.3
+.fi
+.IP "" 0
+.SS "pyenv whence"
+Lists all Python versions with the given command installed\.
+.IP "" 4
+.nf
+$ pyenv whence 2to3
+2\.6\.8
+2\.7\.6
+3\.3\.3
+.fi
+.IP "" 0
+.SH "Environment variables"
+You can affect how pyenv operates with the following settings:
+.TP 28
+.B name (default)
+.B description
+.TP 28
+.B PYENV_VERSION
+Specifies the Python version to be used. Also see \fBpyenv shell\fR
+.TP
+.B PYENV_ROOT (\fB~/.pyenv\fR)
+Defines the directory under which Python versions and shims reside. Also see \fBpyenv root\fR
+.TP
+.B PYENV_DEBUG
+Outputs debug information. 
+.br
+Also as: \fBpyenv --debug <subcommand>\fR
+.TP
+.B PYENV_HOOK_PATH
+Colon\-separated list of paths searched for pyenv hooks\.
+.TP
+.B PYENV_DIR (\fB$PWD\fR)
+Directory to start searching for \fB\.python\-version\fR files\.
+.TP
+.B HTTP_PROXY,HTTPS_PROXY
+Proxy Variables
+.TP
+.B CONFIGURE_OPTS
+Pass configure options to build.
+.TP
+.B PYTHON_BUILD_ARIA2_OPTS
+Used to pass additional parameters to \fBaria2\fR 
+.UR https://aria2\.github\.io/
+.UE
+If the \fBaria2c\fR binary is available on PATH, pyenv uses \fBaria2c\fR instead of \fBcurl\fR or \fBwget\fR to download the Python Source code\. If you have an unstable internet connection, you can use this variable to instruct \fBaria2\fR to accelerate the download\.
+In most cases, you will only need to use \fB\-x 10 \-k 1M\fR as value to \fBPYTHON_BUILD_ARIA2_OPTS\fR environment variable
+.SH "License"
+The \fBMIT\fR License

plugins/.gitignore

@@ -0,0 +1,5 @@
+/*
+!/.gitignore
+!/version-ext-compat
+!/python-build
+/python-build/test/build

plugins/python-build/LICENSE

@@ -1,21 +1,20 @@
-Copyright (c) 2011 Sam Stephenson
-Copyright (c) 2012 Yamashita, Yuu
+Copyright (c) 2013 Yamashita, Yuu
+Copyright (c) 2012-2013 Sam Stephenson
 
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
 
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

plugins/python-build/README.md

@@ -0,0 +1,356 @@
+# python-build
+
+python-build is a [pyenv](https://github.com/pyenv/pyenv) plugin that
+provides a `pyenv install` command to compile and install different versions
+of Python on UNIX-like systems.
+
+You can also use python-build without pyenv in environments where you need
+precise control over Python version installation.
+
+See the [list of releases](https://github.com/pyenv/pyenv/releases)
+for changes in each version.
+
+
+## Installation
+
+### Installing as a pyenv plugin (recommended)
+
+Since python-build is bundled with pyenv by
+default, you do not need to do anything.
+
+### Installing as a standalone program (advanced)
+
+Installing python-build as a standalone program will give you access to the
+`python-build` command for precise control over Python version installation. If you
+have pyenv installed, you will also be able to use the `pyenv install` command.
+
+    git clone https://github.com/pyenv/pyenv.git
+    cd pyenv/plugins/python-build
+    ./install.sh
+
+This will install python-build into `/usr/local`. If you do not have write
+permission to `/usr/local`, you will need to run `sudo ./install.sh` instead.
+You can install to a different prefix by setting the `PREFIX` environment
+variable.
+
+To update python-build after it has been installed, run `git pull` in your cloned
+copy of the repository, then re-run the install script.
+
+### Installing with Homebrew (for OS X users)
+
+Mac OS X users can install python-build with the [Homebrew](http://brew.sh)
+package manager. This will give you access to the `python-build` command. If you
+have pyenv installed, you will also be able to use the `pyenv install` command.
+
+*This is the recommended method of installation if you installed pyenv with
+Homebrew.*
+
+    brew install pyenv
+
+Or, if you would like to install the latest development release:
+
+    brew install --HEAD pyenv
+
+
+## Usage
+
+Before you begin, you should ensure that your build environment has the proper
+system dependencies for compiling the wanted Python Version (see our [recommendations](https://github.com/pyenv/pyenv/wiki#suggested-build-environment)).
+
+### Using `pyenv install` with pyenv
+
+To install a Python version for use with pyenv, run `pyenv install` with
+exact name of the version you want to install. For example,
+
+    pyenv install 2.7.4
+
+Python versions will be installed into a directory of the same name under
+`~/.pyenv/versions`.
+
+To see a list of all available Python versions, run `pyenv install --list`. You
+may also tab-complete available Python versions if your pyenv installation is
+properly configured.
+
+### Using `python-build` standalone
+
+If you have installed python-build as a standalone program, you can use the
+`python-build` command to compile and install Python versions into specific
+locations.
+
+Run the `python-build` command with the exact name of the version you want to
+install and the full path where you want to install it. For example,
+
+    python-build 2.7.4 ~/local/python-2.7.4
+
+To see a list of all available Python versions, run `python-build --definitions`.
+
+Pass the `-v` or `--verbose` flag to `python-build` as the first argument to see
+what's happening under the hood.
+
+### Custom definitions
+
+Both `pyenv install` and `python-build` accept a path to a custom definition file
+in place of a version name. Custom definitions let you develop and install
+versions of Python that are not yet supported by python-build.
+
+See the [python-build built-in definitions](https://github.com/pyenv/pyenv/tree/master/plugins/python-build/share/python-build) as a starting point for
+custom definition files.
+
+#### Adding definitions with a Pyenv plugin
+
+You can add your own definitions with a [Pyenv plugin](https://github.com/pyenv/pyenv?tab=readme-ov-file#pyenv-plugins) by placing them under
+`$PYENV_ROOT/plugins/your_plugin_name/share/python-build`.
+
+### Default build configuration
+
+Without the user customizing the build with environment variables (see below),
+`python-build` builds Python with mostly default Configure options
+to maintain the principle of the least surprise.
+
+The exceptions -- non-default options that are set by default -- are listed below:
+
+| Option/Behavior | Rationale |
+|-----------------|-----------|
+| `--enable-shared` is on by default. Pass `--disable-shared` to Configure options to override | The official CPython Docker image uses it. It's required to embed CPython. |
+| argument to `--enable-universalsdk` is ignored and set to `/` | 
+| `--with-universal-archs` defaults to `universal2` on ARM64 architecture | the only dual-architecture Macs in use today are Apple Silicon which can only build that one |
+| argument to `--enable-framework` is ignored and set to a specific value | CPython's build logic requires a very specific argument to avoid installing the `Applications` part globally |
+| argument to `--enable-unicode` in non-MacOS is overridden to `ucs4` for 2.x-3.3 |
+| `MACOSX_DEPLOYMENT_TARGET` defaults to the running MacOS version |
+
+
+#### Integration with 3rd-party package ecosystems
+
+##### Homebrew
+
+Homebrew is used to find dependency packages if `brew` is found on `PATH`:
+* In MacOS, or
+* If the running Pyenv itself is installed with Homebrew
+
+Set `PYTHON_BUILD_USE_HOMEBREW` or `PYTHON_BUILD_SKIP_HOMEBREW` to override this default.
+
+When Homebrew is used, its `include` and `lib` paths are added to compiler search path (the latter is also set as `rpath`),
+and also Python dependencies that are typically keg-only are searched for in the Homebrew installation and added individually.
+
+**NOTE:** Homebrew is not used in Linux by default because it's rolling-release which causes a problem.
+Upgrading a Python dependency in Homebrew to a new major version (that `brew` does without warning)
+would break all Pyenv-managed installations that depend on it.
+You can use a [community plugin `fix-version`](https://github.com/pyenv/pyenv/wiki/Plugins#community-plugins)
+to fix installations in such a case.
+
+##### MacPorts
+
+MacPorts Homebrew is used to find dependency packages if `port` is found on `PATH` in MacOS.
+
+Set `PYTHON_BUILD_USE_MACPORTS` or `PYTHON_BUILD_SKIP_MACPORTS` to override this default.
+
+###### Interaction with Homebrew
+
+If both Homebrew and MacPorts are installed and allowed to be used, Homebrew takes preference.
+There first ecosystem where any of the required dependency packages is found is used.
+
+##### Portage
+
+In FreeBSD, if `pkg` is on PATH, Ports are searched for some dependencies that Configure is known to not search for via `pkg-config`.
+(Later versions of CPython search for more packages via `pkg-config` so this may eventually become redundant.)
+
+
+### Special environment variables
+
+You can set certain environment variables to control the build process.
+
+* `TMPDIR` sets the location where python-build stores temporary files.
+* `PYTHON_BUILD_BUILD_PATH` sets the location in which sources are downloaded and
+  built. By default, this is a subdirectory of `TMPDIR`.
+* `PYTHON_BUILD_CACHE_PATH`, if set, specifies a directory to use for caching
+  downloaded package files.
+* `PYTHON_BUILD_MIRROR_URL` overrides the default mirror URL root to one of your
+  choosing.
+* `PYTHON_BUILD_MIRROR_URL_SKIP_CHECKSUM`, if set, does not append the SHA2
+  checksum of the file to the mirror URL.
+* `PYTHON_BUILD_SKIP_MIRROR`, if set, forces python-build to download packages from
+  their original source URLs instead of using a mirror.
+* `PYTHON_BUILD_HTTP_CLIENT`, explicitly specify the HTTP client type to use. `aria2`, `curl` and `wget` are the supported values and by default, are searched in that order.
+* `PYTHON_BUILD_CURL_OPTS`, `PYTHON_BUILD_WGET_OPTS`, `PYTHON_BUILD_ARIA2_OPTS` pass additional parameters to the corresponding HTTP client.
+* `PYTHON_BUILD_SKIP_HOMEBREW`, if set, will not search for libraries installed by Homebrew when it would normally will.
+* `PYTHON_BUILD_USE_HOMEBREW`, if set, will search for libraries installed by Homebrew when it would normally not.
+* `PYTHON_BUILD_HOMEBREW_OPENSSL_FORMULA`, override the Homebrew OpenSSL formula to use.
+* `PYTHON_BUILD_TCLTK_FORMULA`, override the Homebrew Tcl/Tk formula to use.
+* `PYTHON_BUILD_SKIP_MACPORTS`, if set, will not search for libraries installed by MacPorts when it would normally will.
+* `PYTHON_BUILD_USE_MACPORTS`, if set, will search for libraries installed by MacPorts when it would normally not.
+* `PYTHON_BUILD_ROOT` overrides the default location from where build definitions
+  in `share/python-build/` are looked up.
+* `PYTHON_BUILD_DEFINITIONS` can be a list of colon-separated paths that get
+  additionally searched when looking up build definitions.
+* `CC` sets the path to the C compiler.
+* `CONFIGURE_OPTS` lets you pass additional options to `./configure`.
+* `MAKE` lets you override the command to use for `make`. Useful for specifying
+  GNU make (`gmake`) on some systems.
+* `MAKE_OPTS` (or `MAKEOPTS`) lets you pass additional options to `make`.
+* `MAKE_INSTALL_OPTS` lets you pass additional options to `make install`.
+* `<PACKAGE>_CFLAGS`, `<PACKAGE>_CPPFLAGS`, `<PACKAGE>_LDFLAGS` let you pass additional options to `CFLAGS`/`CPPFLAGS`/`LDFLAGS` specifically for building `<package>` (Python itself or a dependency library) from source as part of the build script. `<PACKAGE>` should be a capitalized name of the package without version (technically, capitalized first argument to `install_package` without version). E.g. for CPython, it's "`PYTHON`", for Readline, "`READLINE`", for PyPy (only applies when building it from source), "`PYPY`". Check the source of the build script you're using if unsure.
+* `<PACKAGE>_CONFIGURE_OPTS`, `<PACKAGE>_MAKE_OPTS`, `<PACKAGE>_MAKE_INSTALL_OPTS`, `<PACKAGE>_MAKE_INSTALL_TARGET` allow
+  you to specify configure and make options for building `<package>` (same as above). "Make install target" would replace "`install`" in the `make install` invocation.
+
+### Applying patches to Python before compiling
+
+Both `pyenv install` and `python-build` support the `--patch` (`-p`) flag that
+signals that a patch from stdin should be applied to Python, Jython or PyPy
+source code before the `./configure` and compilation steps.
+
+Example usage:
+
+```sh
+# applying a single patch
+$ pyenv install --patch 2.7.10 < /path/to/python.patch
+
+# applying a patch from HTTP
+$ pyenv install --patch 2.7.10 < <(curl -sSL http://git.io/python.patch)
+
+# applying multiple patches
+$ cat fix1.patch fix2.patch | pyenv install --patch 2.7.10
+```
+
+
+### Building for maximum performance
+
+Building CPython with `--enable-optimizations` will result in a faster
+interpreter at the cost of significantly longer build times. Most notably, this
+enables PGO (profile guided optimization). While your mileage may vary, it is
+common for performance improvement from this to be in the ballpark of 30%.
+
+```sh
+env PYTHON_CONFIGURE_OPTS='--enable-optimizations --with-lto' PYTHON_CFLAGS='-march=native -mtune=native' pyenv install --verbose 3.6.0
+```
+
+You can also customize the task used for profile guided optimization by setting
+the `PROFILE_TASK` environment variable, for instance, `PROFILE_TASK='-m
+test.regrtest --pgo -j0'` will run much faster than the default task.
+
+### Checksum verification
+
+If you have the `shasum`, `openssl`, or `sha256sum` tool installed, python-build will
+automatically verify the SHA2 checksum of each downloaded package before
+installing it.
+
+Checksums are optional and specified as anchors on the package URL in each
+definition. (All bundled definitions include checksums.)
+
+### Package download mirrors
+
+python-build will first attempt to download package files from a mirror hosted on
+GitHub Pages. If this fails, it will fall back to the
+official URL specified in the definition file.
+
+You can point python-build to another mirror by specifying the
+`PYTHON_BUILD_MIRROR_URL` environment variable.
+
+Package mirror URLs are constructed by joining
+`$PYTHON_BUILD_MIRROR_URL` with the SHA2 checksum of the package file as specified in the URL
+in the installation script (the part after the hash sign). E.g.:
+
+```
+https://mycache.example.com/0419e9085bf51b7a672009b3f50dbf1859acdf18ba725d0ec19aa5c8503f0ea3
+```
+
+If you have replicated the directory structure of an official site, the easiest way to adapt
+would be to make symlinks at the mirror's root:
+
+```
+0419e9085bf51b7a672009b3f50dbf1859acdf18ba725d0ec19aa5c8503f0ea3 -> 3.10.10/Python-3.10.10.tar.xz
+```
+
+The rationale is to abstract away difference between directory structures of sites
+of various Python flavors and their occasional changes as well as to accomodate
+people who only wish to cache some select downloads. This also allows to mirror multiple sites at once.
+
+If the mirror being used does not have the same checksum (*e.g.* with a
+pull-through cache like Artifactory), you can set the
+`PYTHON_BUILD_MIRROR_URL_SKIP_CHECKSUM` environment variable.
+
+If you don't have an SHA2 program installed, python-build will skip the download
+mirror and use official URLs instead. You can force python-build to bypass the
+mirror by setting the `PYTHON_BUILD_SKIP_MIRROR` environment variable.
+
+The official python-build download mirror is provided by
+[GitHub Pages](http://yyuu.github.io/pythons/).
+
+### Package download cache
+
+Python-build will keep a cache of downloaded package files
+at the location specified by the `PYTHON_BUILD_CACHE_PATH` environment variable
+if it exists. The default is `~/.pyenv/cache`, so you can
+enable caching by just creating that directory.
+
+The name of the would-be cached file is reported by Pyenv in the "Downloading &lt;filename&gt;..." message.
+It's possible to warm up the cache by manually putting the file there under an appropriate name.
+
+### Keeping the build directory after installation
+
+Both `python-build` and `pyenv install` accept the `-k` or `--keep` flag, which
+tells python-build to keep the downloaded source after installation. This can be
+useful if you need to use `gdb` and `memprof` with Python.
+
+Source code will be kept in a parallel directory tree `~/.pyenv/sources` when
+using `--keep` with the `pyenv install` command. You should specify the
+location of the source code with the `PYTHON_BUILD_BUILD_PATH` environment
+variable when using `--keep` with `python-build`.
+
+
+## Getting Help
+
+Please see the [pyenv wiki](https://github.com/pyenv/pyenv/wiki) for solutions to common problems.
+
+[wiki]: https://github.com/pyenv/pyenv/wiki
+
+If you can't find an answer on the wiki, open an issue on the [issue
+tracker](https://github.com/pyenv/pyenv/issues). Be sure to include
+the full build log for build failures.
+
+## Contributing
+
+### Testing new python versions
+
+If you are contributing a new python version for python-build,
+you can test the build in a [docker](https://www.docker.com/) container based on Ubuntu 18.04.
+
+With docker installed:
+
+```sh
+docker build -t my_container .
+docker run my_container pyenv install <my_version>
+```
+
+To enter a shell which will allow you to build and then test a python version,
+replace the second line with
+
+```sh
+docker run -it my_container
+```
+
+The container will need to be rebuilt whenever you change the repo,
+but after the first build, this will be very fast,
+as the layer including the build dependencies will be cached.
+
+Changes made inside the container will not be persisted.
+
+To test *all* new versions since a particular revision (e.g. `master`), `cd` to the root of your `pyenv` repo, and run this script:
+
+```sh
+set -e
+set -x
+
+docker build -t pyenv-test-container .
+
+git diff --name-only master \
+  | grep '^plugins/python-build/share/python-build/' \
+  | awk -F '/' '{print $NF}' \
+  | xargs -I _ docker run pyenv-test-container pyenv install _
+```
+
+- Build the docker image with the **t**ag pyenv-test-container
+- Look for the names files changed since revision `master`
+- Filter out any which don't live where python-build keeps its build scripts
+- Look only at the file name (i.e. the python version name)
+- Run a new docker container for each, building that version
+

plugins/python-build/bin/pyenv-install

@@ -1,36 +1,79 @@
 #!/usr/bin/env bash
+#
+# Summary: Install a Python version using python-build
+#
+# Usage: pyenv install [-f] [-kvp] <version>...
+#        pyenv install [-f] [-kvp] <definition-file>
+#        pyenv install -l|--list
+#        pyenv install --version
+#
+#   -l/--list          List all available versions
+#   -f/--force         Install even if the version appears to be installed already
+#   -s/--skip-existing Skip if the version appears to be installed already
+#
+#   python-build options:
+#
+#   -k/--keep          Keep source tree in $PYENV_BUILD_ROOT after installation
+#                      (defaults to $PYENV_ROOT/sources)
+#   -p/--patch         Apply a patch from stdin before building
+#   -v/--verbose       Verbose mode: print compilation status to stdout
+#   --version          Show version of python-build
+#   -g/--debug         Build a debug version
+#
+# For detailed information on installing Python versions with
+# python-build, including a list of environment variables for adjusting
+# compilation, see: https://github.com/pyenv/pyenv#readme
+#
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
+# Add `share/python-build/` directory from each pyenv plugin to the list of
+# paths where build definitions are looked up.
+shopt -s nullglob
+for plugin_path in "$PYENV_ROOT"/plugins/*/share/python-build; do
+  PYTHON_BUILD_DEFINITIONS="${PYTHON_BUILD_DEFINITIONS}:${plugin_path}"
+done
+export PYTHON_BUILD_DEFINITIONS
+shopt -u nullglob
+
 # Provide pyenv completions
 if [ "$1" = "--complete" ]; then
+  echo --list
+  echo --force
+  echo --skip-existing
+  echo --keep
+  echo --patch
+  echo --verbose
+  echo --version
+  echo --debug
   exec python-build --definitions
 fi
 
-if [ -z "$PYENV_ROOT" ]; then
-  PYENV_ROOT="${HOME}/.pyenv"
-fi
-
 # Load shared library functions
 eval "$(python-build --lib)"
 
 usage() {
-  { echo "usage: pyenv install [-k|--keep] [-v|--verbose] VERSION"
-    echo "       pyenv install [-k|--keep] [-v|--verbose] /path/to/definition"
-    echo "       pyenv install -l|--list"
-    echo
-    echo "  -l/--list        List all available versions"
-    echo "  -k/--keep        Keep source tree in \$PYENV_BUILD_ROOT after installation"
-    echo "                   (defaults to ${PYENV_ROOT}/sources)"
-    echo "  -v/--verbose     Verbose mode: print compilation status to stdout"
-    echo
-  } >&2
-
+  pyenv-help install 2>/dev/null
   [ -z "$1" ] || exit "$1"
 }
 
+definitions() {
+  local query="$1"
+  python-build --definitions | $(type -P ggrep grep | head -n1) -F "$query" || true
+}
+
+indent() {
+  sed 's/^/  /'
+}
+
+unset FORCE
+unset SKIP_EXISTING
 unset KEEP
 unset VERBOSE
+unset HAS_PATCH
+unset DEBUG
+
+[ -n "$PYENV_DEBUG" ] && VERBOSE="-v"
 
 parse_options "$@"
 for option in "${OPTIONS[@]}"; do
@@ -40,39 +83,213 @@ for option in "${OPTIONS[@]}"; do
     ;;
   "l" | "list" )
     echo "Available versions:"
-    python-build --definitions | sed 's/^/  /'
+    definitions | indent
     exit
     ;;
+  "f" | "force" )
+    FORCE=true
+    ;;
+  "s" | "skip-existing" )
+    SKIP_EXISTING=true
+    ;;
   "k" | "keep" )
     [ -n "${PYENV_BUILD_ROOT}" ] || PYENV_BUILD_ROOT="${PYENV_ROOT}/sources"
     ;;
   "v" | "verbose" )
     VERBOSE="-v"
     ;;
+  "p" | "patch" )
+    HAS_PATCH="-p"
+    ;;
+  "g" | "debug" )
+    DEBUG="-g"
+    ;;
   "version" )
     exec python-build --version
     ;;
   * )
-    usage 1
+    usage 1 >&2
     ;;
   esac
 done
 
-DEFINITION="${ARGUMENTS[0]}"
-[ -n "$DEFINITION" ] || usage 1
+unset VERSION_NAME
+
+# The first argument contains the definition to install. If the
+# argument is missing, try to install whatever local app-specific
+# version is specified by pyenv. Show usage instructions if a local
+# version is not specified.
+DEFINITIONS=("${ARGUMENTS[@]}")
+[[ "${#DEFINITIONS[*]}" -eq 0 ]] && DEFINITIONS=($(pyenv-local 2>/dev/null || true))
+[[ "${#DEFINITIONS[*]}" -eq 0 ]] && usage 1 >&2
+
+# Define `before_install` and `after_install` functions that allow
+# plugin hooks to register a string of code for execution before or
+# after the installation process.
+declare -a before_hooks after_hooks
+
+before_install() {
+  local hook="$1"
+  before_hooks["${#before_hooks[@]}"]="$hook"
+}
+
+after_install() {
+  local hook="$1"
+  after_hooks["${#after_hooks[@]}"]="$hook"
+}
+
+# Plan cleanup on unsuccessful installation.
+cleanup() {
+  [ -z "${PREFIX_EXISTS}" ] && rm -rf "$PREFIX"
+}
+
+trap cleanup SIGINT
+
+
+OLDIFS="$IFS"
+IFS=$'\n' scripts=(`pyenv-hooks install`)
+IFS="$OLDIFS"
+for script in "${scripts[@]}"; do source "$script"; done
+
+COMBINED_STATUS=0
+for DEFINITION in "${DEFINITIONS[@]}"; do
+  STATUS=0
+
+  # Try to resolve a prefix if user indeed gave a prefix.
+  # We install the version under the resolved name
+  # and hooks also see the resolved name
+  DEFINITION="$(pyenv-latest -f -k "$DEFINITION")"
+
+  # Set VERSION_NAME from $DEFINITION. Then compute the installation prefix.
+  VERSION_NAME="${DEFINITION##*/}"
+  [ -n "$DEBUG" ] && VERSION_NAME="${VERSION_NAME}-debug"
+  PREFIX="${PYENV_ROOT}/versions/${VERSION_NAME}"
+
+  [ -d "${PREFIX}" ] && PREFIX_EXISTS=1
+
+  # If the installation prefix exists, prompt for confirmation unless
+  # the --force option was specified.
+  if [ -d "${PREFIX}/bin" ]; then
+    if [ -z "$FORCE" ] && [ -z "$SKIP_EXISTING" ]; then
+      echo "pyenv: $PREFIX already exists" >&2
+      read -p "continue with installation? (y/N) "
+
+      case "$REPLY" in
+      y | Y | yes | YES ) ;;
+      * ) { STATUS=1; [[ $STATUS -gt $COMBINED_STATUS ]] && COMBINED_STATUS=$STATUS; }; continue ;;
+      esac
+    elif [ -n "$SKIP_EXISTING" ]; then
+      # Since we know the python version is already installed, and are opting to
+      # not force installation of existing versions, we just `exit 0` here to
+      # leave things happy
+      continue
+    fi
+  fi
+
+  # If PYENV_BUILD_ROOT is set, always pass keep options to python-build.
+  if [ -n "${PYENV_BUILD_ROOT}" ]; then
+    export PYTHON_BUILD_BUILD_PATH="${PYENV_BUILD_ROOT}/${VERSION_NAME}"
+    KEEP="-k"
+  fi
+
+  # Set PYTHON_BUILD_CACHE_PATH to $PYENV_ROOT/cache, if the directory
+  # exists and the variable is not already set.
+  if [ -z "${PYTHON_BUILD_CACHE_PATH}" ] && [ -d "${PYENV_ROOT}/cache" ]; then
+    export PYTHON_BUILD_CACHE_PATH="${PYENV_ROOT}/cache"
+  fi
+
+  if [ -z "${PYENV_BOOTSTRAP_VERSION}" ]; then
+    case "${VERSION_NAME}" in
+    [23]"."* )
+      # Default PYENV_VERSION to the friendly Python version. (The
+      # CPython installer requires an existing Python installation to run. An
+      # unsatisfied local .python-version file can cause the installer to
+      # fail.)
+      for version_info in "${VERSION_NAME%-dev}" "${VERSION_NAME%.*}" "${VERSION_NAME%%.*}"; do
+        # Anaconda's `curl` doesn't work on platform where `/etc/pki/tls/certs/ca-bundle.crt` isn't available (e.g. Debian)
+        for version in $(pyenv-whence "python${version_info}" 2>/dev/null || true); do
+          if [[ "${version}" != "anaconda"* ]] && [[ "${version}" != "miniconda"* ]]; then
+            PYENV_BOOTSTRAP_VERSION="${version}"
+            break 2
+          fi
+        done
+      done
+      ;;
+    "pypy"*"-dev" | "pypy"*"-src" )
+      # PyPy/PyPy3 requires existing Python 2.7 to build
+      if [ -n "${PYENV_RPYTHON_VERSION}" ]; then
+        PYENV_BOOTSTRAP_VERSION="${PYENV_RPYTHON_VERSION}"
+      else
+        for version in $(pyenv-versions --bare | sort -r); do
+          if [[ "${version}" == "2.7"* ]]; then
+            PYENV_BOOTSTRAP_VERSION="$version"
+            break
+          fi
+        done
+      fi
+      if [ -n "$PYENV_BOOTSTRAP_VERSION" ]; then
+        for dep in pycparser; do
+          if ! PYENV_VERSION="$PYENV_BOOTSTRAP_VERSION" pyenv-exec python -c "import ${dep}" 1>/dev/null 2>&1; then
+            echo "pyenv-install: $VERSION_NAME: PyPy requires \`${dep}' in $PYENV_BOOTSTRAP_VERSION to build from source." >&2
+            exit 1
+          fi
+        done
+      else
+        echo "pyenv-install: $VERSION_NAME: PyPy requires Python 2.7 to build from source." >&2
+        exit 1
+      fi
+      ;;
+    esac
+  fi
+
+  if [ -n "${PYENV_BOOTSTRAP_VERSION}" ]; then
+    export PYENV_VERSION="${PYENV_BOOTSTRAP_VERSION}"
+  fi
+
+  # Execute `before_install` hooks.
+  for hook in "${before_hooks[@]}"; do eval "$hook"; done
+
+  # Invoke `python-build` and record the exit status in $STATUS.
+  python-build $KEEP $VERBOSE $HAS_PATCH $DEBUG "$DEFINITION" "$PREFIX" || \
+      { STATUS=$?; [[ $STATUS -gt $COMBINED_STATUS ]] && COMBINED_STATUS=$STATUS; }
+
+  # Display a more helpful message if the definition wasn't found.
+  if [ "$STATUS" == "2" ]; then
+    { candidates="$(definitions "$DEFINITION")"
+      here="$(dirname "${0%/*}")/../.."
+      if [ -n "$candidates" ]; then
+        echo
+        echo "The following versions contain \`$DEFINITION' in the name:"
+        echo "$candidates" | indent
+      fi
+      echo
+      echo "See all available versions with \`pyenv install --list'."
+      echo
+      echo -n "If the version you need is missing, try upgrading pyenv"
+      if [ "$here" != "${here#$(brew --prefix 2>/dev/null)}" ]; then
+        printf ":\n\n"
+        echo "  brew update && brew upgrade pyenv"
+      elif [ -d "${here}/.git" ]; then
+        printf ":\n\n"
+        echo "  cd ${here} && git pull && cd -"
+      else
+        printf ".\n"
+      fi
+    } >&2
+  fi
+
+  # Execute `after_install` hooks.
+  for hook in "${after_hooks[@]}"; do eval "$hook"; done
+
+  # Run `pyenv-rehash` after a successful installation.
+  if [[ $STATUS -eq 0 ]]; then
+    pyenv-rehash
+  else
+    cleanup
+    break
+  fi
 
-for script in $(pyenv-hooks install); do
-  source "$script"
 done
 
-VERSION_NAME="${DEFINITION##*/}"
-PREFIX="${PYENV_ROOT}/versions/${VERSION_NAME}"
 
-# If PYENV_BUILD_ROOT is set, then always pass keep options to python-build
-if [ -n "${PYENV_BUILD_ROOT}" ]; then
-  export PYTHON_BUILD_BUILD_PATH="${PYENV_BUILD_ROOT}/${VERSION_NAME}"
-  KEEP="-k"
-fi
-
-python-build $KEEP $VERBOSE "$DEFINITION" "$PREFIX"
-pyenv rehash
+exit "${COMBINED_STATUS}"

plugins/python-build/bin/pyenv-uninstall

@@ -1,55 +1,98 @@
 #!/usr/bin/env bash
+#
+# Summary: Uninstall Python versions
+#
+# Usage: pyenv uninstall [-f|--force] <version> ...
+#
+#    -f  Attempt to remove the specified version without prompting
+#        for confirmation. If the version does not exist, do not
+#        display an error message.
+#
+# See `pyenv versions` for a complete list of installed versions.
+#
 set -e
+[ -n "$PYENV_DEBUG" ] && set -x
 
 # Provide pyenv completions
 if [ "$1" = "--complete" ]; then
+  echo --force
   exec pyenv versions --bare
 fi
 
-if [ -z "$PYENV_ROOT" ]; then
-  PYENV_ROOT="${HOME}/.pyenv"
+usage() {
+  pyenv-help uninstall 2>/dev/null
+  [ -z "$1" ] || exit "$1"
+}
+
+if [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
+  usage 0
 fi
 
 unset FORCE
-if [ "$1" = "-f" ]; then
+if [ "$1" = "-f" ] || [ "$1" = "--force" ]; then
   FORCE=true
   shift
 fi
 
-DEFINITION="$1"
-case "$DEFINITION" in
-"" | -* )
-  { echo "usage: pyenv uninstall [-f] VERSION"
-    echo
-    echo "   -f  Attempt to remove the specified version without prompting"
-    echo "       for confirmation. If the version does not exist, do not"
-    echo "       display an error message."
-    echo
-    echo "Installed versions:"
-    pyenv versions --bare | sed 's/^/  /'
-    echo
-  } >&2
-  exit 1
-  ;;
-esac
+[ "$#" -gt 0 ] || usage 1 >&2
 
-VERSION_NAME="${DEFINITION##*/}"
-PREFIX="${PYENV_ROOT}/versions/${VERSION_NAME}"
+versions=("$@")
 
-if [ -z "$FORCE" ]; then
-  if [ ! -d "$PREFIX" ]; then
-    echo "pyenv: version \`$VERSION_NAME' not installed" >&2
-    exit 1
+for version in "${versions[@]}"; do
+  case "$version" in
+  "" | -* )
+    usage 1 >&2
+    ;;
+  esac
+done
+
+declare -a before_hooks after_hooks
+
+before_uninstall() {
+  local hook="$1"
+  before_hooks["${#before_hooks[@]}"]="$hook"
+}
+
+after_uninstall() {
+  local hook="$1"
+  after_hooks["${#after_hooks[@]}"]="$hook"
+}
+
+OLDIFS="$IFS"
+IFS=$'\n' scripts=(`pyenv-hooks uninstall`)
+IFS="$OLDIFS"
+for script in "${scripts[@]}"; do source "$script"; done
+
+uninstall-python() {
+  local DEFINITION="$1"
+
+  local VERSION_NAME="${DEFINITION##*/}"
+  local PREFIX="${PYENV_ROOT}/versions/${VERSION_NAME}"
+
+  if [ -z "$FORCE" ]; then
+    if [ ! -d "$PREFIX" ]; then
+      echo "pyenv: version \`$VERSION_NAME' not installed" >&2
+      exit 1
+    fi
+
+    read -p "pyenv: remove $PREFIX? (y/N) "
+    case "$REPLY" in
+    y | Y | yes | YES ) ;;
+    * ) exit 1 ;;
+    esac
   fi
 
-  read -p "pyenv: remove $PREFIX? "
-  case "$REPLY" in
-  y* | Y* ) ;;
-  * ) exit 1 ;;
-  esac
-fi
+  for hook in "${before_hooks[@]}"; do eval "$hook"; done
 
-if [ -d "$PREFIX" ]; then
-  rm -rf "$PREFIX"
-  pyenv rehash
-fi
+  if [ -d "$PREFIX" ]; then
+    rm -rf "$PREFIX"
+    pyenv-rehash
+    echo "pyenv: $VERSION_NAME uninstalled"
+  fi
+
+  for hook in "${after_hooks[@]}"; do eval "$hook"; done
+}
+
+for version in "${versions[@]}"; do
+  uninstall-python "$version"
+done

plugins/python-build/install.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+# Usage: PREFIX=/usr/local ./install.sh
+#
+# Installs python-build under $PREFIX.
+
+set -e
+
+cd "$(dirname "$0")"
+
+if [ -z "${PREFIX}" ]; then
+  PREFIX="/usr/local"
+fi
+
+BIN_PATH="${PREFIX}/bin"
+SHARE_PATH="${PREFIX}/share/python-build"
+
+mkdir -p "$BIN_PATH" "$SHARE_PATH"
+
+install -p bin/* "$BIN_PATH"
+for share in share/python-build/*; do
+  if [ -d "$share" ]; then
+    cp -RPp "$share" "$SHARE_PATH"
+  else
+    install -p -m 0644 "$share" "$SHARE_PATH"
+  fi
+done

plugins/python-build/scripts/README.md

@@ -0,0 +1,22 @@
+# Scripts for updating python-build
+
+Install dependencies with `pip install -r requirements.txt`.
+
+## add_miniconda.py
+
+```_add_miniconda
+usage: add_miniconda.py [-h] [-d] [-v]
+
+Script to add non-"latest" miniconda releases. Written for python 3.7. Checks
+the miniconda download archives for new versions, then writes a build script
+for any which do not exist locally, saving it to plugins/python-
+build/share/python-build. Ignores releases below 4.3.30. Also ignores sub-
+patch releases if that major.minor.patch already exists, but otherwise, takes
+the latest sub-patch release for given OS/arch. Assumes all miniconda3
+releases < 4.7 default to python 3.6, and anything else 3.7.
+
+optional arguments:
+  -h, --help     show this help message and exit
+  -d, --dry-run  Do not write scripts, just report them to stdout
+  -v, --verbose  Increase verbosity of logging
+```

plugins/python-build/scripts/add_miniconda.py

@@ -0,0 +1,423 @@
+#!/usr/bin/env python3
+"""Script to add non-"latest" miniconda releases.
+Written for python 3.7.
+
+Checks the miniconda download archives for new versions,
+then writes a build script for any which do not exist locally,
+saving it to plugins/python-build/share/python-build.
+
+Ignores releases below 4.3.30.
+Also ignores sub-patch releases if that major.minor.patch already exists,
+but otherwise, takes the latest sub-patch release for given OS/arch.
+Assumes all miniconda3 releases < 4.7 default to python 3.6, and anything else 3.7.
+"""
+import logging
+import re
+import string
+import sys
+import textwrap
+from argparse import ArgumentParser
+from collections import defaultdict
+from dataclasses import dataclass
+from enum import Enum
+from functools import total_ordering
+from pathlib import Path
+from typing import NamedTuple, List, Optional, DefaultDict, Dict
+
+import requests_html
+
+logger = logging.getLogger(__name__)
+
+CONDA_REPO = "https://repo.anaconda.com"
+MINICONDA_REPO = CONDA_REPO + "/miniconda"
+ANACONDA_REPO = CONDA_REPO + "/archive"
+
+install_script_fmt = """
+case "$(anaconda_architecture 2>/dev/null || true)" in
+{install_lines}
+* )
+  {{ echo
+    colorize 1 "ERROR"
+    echo ": The binary distribution of {tflavor} is not available for $(anaconda_architecture 2>/dev/null || true)."
+    echo
+  }} >&2
+  exit 1
+  ;;
+esac
+""".lstrip()
+
+install_line_fmt = """
+"{os}-{arch}" )
+  install_script "{tflavor}{suffix}-{version_py_version}{version_str}-{os}-{arch}" "{repo}/{tflavor}{suffix}-{version_py_version}{version_str}-{os}-{arch}.sh#{md5}" "{flavor}" verify_{py_version}
+  ;;
+""".strip()
+
+here = Path(__file__).resolve()
+out_dir: Path = here.parent.parent / "share" / "python-build"
+
+
+class StrEnum(str, Enum):
+    """Enum subclass whose members are also instances of str
+    and directly comparable to strings. str type is forced at declaration.
+
+    Adapted from https://github.com/kissgyorgy/enum34-custom/blob/dbc89596761c970398701d26c6a5bbcfcf70f548/enum_custom.py#L100
+    (MIT license)
+    """
+
+    def __new__(cls, *args):
+        for arg in args:
+            if not isinstance(arg, str):
+                raise TypeError("Not text %s:" % arg)
+
+        return super(StrEnum, cls).__new__(cls, *args)
+
+    def __str__(self):
+        return str(self.value)
+
+
+class SupportedOS(StrEnum):
+    LINUX = "Linux"
+    MACOSX = "MacOSX"
+
+
+class SupportedArch(StrEnum):
+    AARCH64 = "aarch64"
+    ARM64 = "arm64"
+    PPC64LE = "ppc64le"
+    S390X = "s390x"
+    X86_64 = "x86_64"
+    X86 = "x86"
+
+
+class Flavor(StrEnum):
+    ANACONDA = "anaconda"
+    MINICONDA = "miniconda"
+
+
+class TFlavor(StrEnum):
+    ANACONDA = "Anaconda"
+    MINICONDA = "Miniconda"
+
+
+class Suffix(StrEnum):
+    TWO = "2"
+    THREE = "3"
+    NONE = ""
+
+
+PyVersion = None
+class PyVersionMeta(type):
+    def __getattr__(self, name):
+        """Generate PyVersion.PYXXX on demand to future-proof it"""
+        if PyVersion is not None:
+            return PyVersion(name.lower())
+        return super(PyVersionMeta,self).__getattr__(self, name)
+
+
+@dataclass(frozen=True)
+class PyVersion(metaclass=PyVersionMeta):
+    major: str
+    minor: str
+
+    def __init__(self, value):
+        (major, minor) = re.match(r"py(\d)(\d+)", value).groups()
+        object.__setattr__(self, "major", major)
+        object.__setattr__(self, "minor", minor)
+
+    @property
+    def value(self):
+        return f"py{self.major}{self.minor}"
+
+    def version(self):
+        return f"{self.major}.{self.minor}"
+
+    def version_info(self):
+        return (self.major, self.minor)
+
+    def __str__(self):
+        return self.value
+
+
+@total_ordering
+class VersionStr(str):
+    def info(self):
+        return tuple(int(n) for n in self.replace("-", ".").split("."))
+
+    def __eq__(self, other):
+        return str(self) == str(other)
+
+    def __lt__(self, other):
+        if isinstance(other, VersionStr):
+            return self.info() < other.info()
+        raise ValueError("VersionStr can only be compared to other VersionStr")
+
+    @classmethod
+    def from_info(cls, version_info):
+        return VersionStr(".".join(str(n) for n in version_info))
+
+    def __hash__(self):
+        return hash(str(self))
+
+
+class CondaVersion(NamedTuple):
+    flavor: Flavor
+    suffix: Suffix
+    version_str: VersionStr
+    py_version: Optional[PyVersion]
+
+    @classmethod
+    def from_str(cls, s):
+        """
+        Convert a string of the form "miniconda_n-ver" or "miniconda_n-py_ver-ver" to a :class:`CondaVersion` object.
+        """
+        miniconda_n, _, remainder = s.partition("-")
+        suffix = miniconda_n[-1]
+        if suffix in string.digits:
+            flavor = miniconda_n[:-1]
+        else:
+            flavor = miniconda_n
+            suffix = ""
+
+        components = remainder.split("-")
+        if flavor == Flavor.MINICONDA and len(components) >= 2:
+            py_ver, *ver_parts = components
+            py_ver = PyVersion(f"py{py_ver.replace('.', '')}")
+            ver = "-".join(ver_parts)
+        else:
+            ver = "-".join(components)
+            py_ver = None
+
+        return CondaVersion(Flavor(flavor), Suffix(suffix), VersionStr(ver), py_ver)
+
+    def to_filename(self):
+        if self.py_version:
+            return f"{self.flavor}{self.suffix}-{self.py_version.version()}-{self.version_str}"
+        else:
+            return f"{self.flavor}{self.suffix}-{self.version_str}"
+
+    def default_py_version(self):
+        """
+        :class:`PyVersion` of Python used with this Miniconda version
+        """
+        if self.py_version:
+            return self.py_version
+        elif self.suffix == Suffix.TWO:
+            return PyVersion.PY27
+
+        v = self.version_str.info()
+        if self.flavor == "miniconda":
+            # https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-python.html
+            if v < (4, 7):
+                return PyVersion.PY36
+            if v < (4, 8):
+                return PyVersion.PY37
+            else:
+                # since 4.8, Miniconda specifies versions explicitly in the file name
+                raise ValueError("Miniconda 4.8+ is supposed to specify a Python version explicitly")
+        if self.flavor == "anaconda":
+            # https://docs.anaconda.com/free/anaconda/reference/release-notes/
+            if v >= (2024,6):
+                return PyVersion.PY312
+            if v >= (2023,7):
+                return PyVersion.PY311
+            if v >= (2023,3):
+                return PyVersion.PY310
+            if v >= (2021,11):
+                return PyVersion.PY39
+            if v >= (2020,7):
+                return PyVersion.PY38
+            if v >= (2020,2):
+                return PyVersion.PY37
+            if v >= (5,3,0):
+                return PyVersion.PY37
+            return PyVersion.PY36
+
+        raise ValueError(self.flavor)
+
+
+class CondaSpec(NamedTuple):
+    tflavor: TFlavor
+    version: CondaVersion
+    os: SupportedOS
+    arch: SupportedArch
+    md5: str
+    repo: str
+    py_version: Optional[PyVersion] = None
+
+    @classmethod
+    def from_filestem(cls, stem, md5, repo, py_version=None):
+        # The `*vers` captures the new trailing `-1` in some file names (a build number?)
+        # so they can be processed properly.
+        miniconda_n, *vers, os, arch = stem.split("-")
+        ver = "-".join(vers)
+        suffix = miniconda_n[-1]
+        if suffix in string.digits:
+            tflavor = miniconda_n[:-1]
+        else:
+            tflavor = miniconda_n
+            suffix = ""
+        flavor = tflavor.lower()
+
+        if ver.startswith("py"):
+            py_ver, ver = ver.split("_", maxsplit=1)
+            py_ver = PyVersion(py_ver)
+        else:
+            py_ver = None
+        spec = CondaSpec(
+            TFlavor(tflavor),
+            CondaVersion(Flavor(flavor), Suffix(suffix), VersionStr(ver), py_ver),
+            SupportedOS(os),
+            SupportedArch(arch),
+            md5,
+            repo,
+            py_ver
+        )
+        if py_version is None and py_ver is None and ver != "latest":
+            spec = spec.with_py_version(spec.version.default_py_version())
+        return spec
+
+    def to_install_lines(self):
+        """
+        Installation command for this version of Miniconda for use in a Pyenv installation script
+        """
+        return install_line_fmt.format(
+            tflavor=self.tflavor,
+            flavor=self.version.flavor,
+            repo=self.repo,
+            suffix=self.version.suffix,
+            version_str=self.version.version_str,
+            version_py_version=f"{self.version.py_version}_" if self.version.py_version else "",
+            os=self.os,
+            arch=self.arch,
+            md5=self.md5,
+            py_version=self.py_version,
+        )
+
+    def with_py_version(self, py_version: PyVersion):
+        return CondaSpec(*self[:-1], py_version=py_version)
+
+
+def make_script(specs: List[CondaSpec]):
+    install_lines = [s.to_install_lines() for s in specs]
+    return install_script_fmt.format(
+        install_lines="\n".join(install_lines),
+        tflavor=specs[0].tflavor,
+    )
+
+
+def get_existing_condas(name):
+    """
+    Enumerate existing Miniconda installation scripts in share/python-build/ except rolling releases.
+
+    :returns: A generator of :class:`CondaVersion` objects.
+    """
+    logger.info("Getting known %(name)s versions",locals())
+    for p in out_dir.iterdir():
+        entry_name = p.name
+        if not p.is_file() or not entry_name.startswith(name):
+            continue
+        try:
+            v = CondaVersion.from_str(entry_name)
+            if v.version_str != "latest":
+                logger.debug("Found existing %(name)s version %(v)s", locals())
+                yield v
+        except ValueError as e:
+            logger.error("Unable to parse existing version %s: %s", entry_name, e)
+
+
+def get_available_condas(name, repo):
+    """
+    Fetch remote miniconda versions.
+
+    :returns: A generator of :class:`CondaSpec` objects for each release available for download
+    except rolling releases.
+    """
+    logger.info("Fetching remote %(name)s versions",locals())
+    session = requests_html.HTMLSession()
+    response = session.get(repo)
+    page: requests_html.HTML = response.html
+    table = page.find("table", first=True)
+    rows = table.find("tr")[1:]
+    for row in rows:
+        f, size, date, md5 = row.find("td")
+        fname = f.text
+        md5 = md5.text
+
+        if not fname.endswith(".sh"):
+            continue
+        stem = fname[:-3]
+
+        try:
+            s = CondaSpec.from_filestem(stem, md5, repo)
+            if s.version.version_str != "latest":
+                logger.debug("Found remote %(name)s version %(s)s", locals())
+                yield s
+        except ValueError:
+            pass
+
+
+def key_fn(spec: CondaSpec):
+    return (
+        spec.tflavor,
+        spec.version.version_str.info(),
+        spec.version.suffix.value,
+        spec.os.value,
+        spec.arch.value,
+    )
+
+
+if __name__ == "__main__":
+    parser = ArgumentParser(description=__doc__)
+    parser.add_argument(
+        "-d", "--dry-run", action="store_true",
+        help="Do not write scripts, just report them to stdout",
+    )
+    parser.add_argument(
+        "-v", "--verbose", action="store_true", default=0,
+        help="Increase verbosity of logging",
+    )
+    parsed = parser.parse_args()
+
+    logging.basicConfig(level=logging.DEBUG if parsed.verbose else logging.INFO)
+
+    existing_versions = set()
+    available_specs = set()
+    for name,repo in ("miniconda",MINICONDA_REPO),("anaconda",ANACONDA_REPO):
+        existing_versions |= set(get_existing_condas(name))
+        available_specs |= set(get_available_condas(name, repo))
+
+    # version triple to triple-ified spec to raw spec
+    to_add: DefaultDict[
+        CondaVersion, Dict[CondaSpec, CondaSpec]
+    ] = defaultdict(dict)
+
+    logger.info("Checking for new versions")
+    for s in sorted(available_specs, key=key_fn):
+        key = s.version
+        vv = key.version_str.info()
+
+        reason = None
+        if key in existing_versions:
+            reason = "already exists"
+        elif key.version_str.info() <= (4, 3, 30):
+            reason = "too old"
+        elif len(key.version_str.info()) >= 4 and "-" not in key.version_str:
+            reason = "ignoring hotfix releases"
+
+        if reason:
+            logger.debug("Ignoring version %(s)s (%(reason)s)", locals())
+            continue
+
+        to_add[key][s] = s
+
+    logger.info("Writing %s scripts", len(to_add))
+    for ver, d in to_add.items():
+        specs = list(d.values())
+        fpath = out_dir / ver.to_filename()
+        script_str = make_script(specs)
+        logger.info("Writing script for %s", ver)
+        if parsed.dry_run:
+            print(f"Would write spec to {fpath}:\n" + textwrap.indent(script_str, "  "))
+        else:
+            with open(fpath, "w") as f:
+                f.write(script_str)

plugins/python-build/scripts/add_miniforge.py

@@ -0,0 +1,142 @@
+#!/usr/bin/env python3
+'Adds the latest miniforge and mambaforge releases.'
+from pathlib import Path
+import logging
+import os
+import string
+
+import requests
+
+logger = logging.getLogger(__name__)
+logging.basicConfig(level=os.environ.get('LOGLEVEL', 'INFO'))
+
+MINIFORGE_REPO = 'conda-forge/miniforge'
+DISTRIBUTIONS = ['miniforge']
+DISTRIBUTIONS_PRE25  = ['miniforge', 'mambaforge']
+
+SKIPPED_RELEASES = [
+    '4.13.0-0',     #has no Mambaforge. We already generated scripts for Miniforge
+    '22.11.1-0',    #MacOS packages are broken (have broken dep tarballs, downloading them fails with 403)
+    '22.11.1-1',    #MacOS packages are broken (have broken dep tarballs, downloading them fails with 403)
+    '22.11.1-2',    #MacOS packages are broken (have broken dep tarballs, downloading them fails with 403)
+    '25.3.0-0',     #marked as prerelease, no Linux version
+]
+
+install_script_fmt = """
+case "$(anaconda_architecture 2>/dev/null || true)" in
+{install_lines}
+* )
+  {{ echo
+    colorize 1 "ERROR"
+    echo ": The binary distribution of {flavor} is not available for $(anaconda_architecture 2>/dev/null || true)."
+    echo
+  }} >&2
+  exit 1
+  ;;
+esac
+""".lstrip()
+
+install_line_fmt = """
+"{os}-{arch}" )
+  install_script "{filename}" "{url}#{sha}" "miniconda" verify_py{py_version}
+  ;;
+""".strip()
+
+here = Path(__file__).resolve()
+out_dir: Path = here.parent.parent / "share" / "python-build"
+
+def download_sha(url):
+    logger.info('Downloading SHA file %(url)s', locals())
+    tup = tuple(reversed(requests.get(url).text.replace('./', '').rstrip().split()))
+    logger.debug('Got %(tup)s', locals())
+    return tup
+
+def create_spec(filename, sha, url):
+    flavor_with_suffix, version, subversion, os, arch = filename.replace('.sh', '').split('-')
+    suffix = flavor_with_suffix[-1]
+
+    if suffix in string.digits:
+        flavor = flavor_with_suffix[:-1]
+    else:
+        flavor = flavor_with_suffix
+
+    spec = {
+        'filename': filename,
+        'sha': sha,
+        'url': url,
+        'py_version': py_version(version),
+        'flavor': flavor,
+        'os': os,
+        'arch': arch,
+        'installer_filename': f'{flavor_with_suffix.lower()}-{version}-{subversion}',
+    }
+
+    logger.debug('Created spec %(spec)s', locals())
+
+    return spec
+
+def version_tuple(version):
+    return tuple(int(part) for part in version.split('-')[0].split("."))
+
+def py_version(version):
+    """Suffix for `verify_pyXXX` to call in the generated build script"""
+    version_tuple_ = version_tuple(version)
+    # current version: mentioned under https://github.com/conda-forge/miniforge?tab=readme-ov-file#requirements-and-installers
+    # transition points:
+    # https://github.com/conda-forge/miniforge/blame/main/Miniforge3/construct.yaml
+    # look for "- python <version>" in non-pypy branch and which tag the commit is first in
+    if version_tuple_ >= (24,5):
+        # yes, they jumped from 3.10 directly to 3.12
+        # https://github.com/conda-forge/miniforge/commit/bddad0baf22b37cfe079e47fd1680fdfb2183590
+        return "312"
+    if version_tuple_ >= (4,14):
+        return "310"
+    raise ValueError("Bundled Python version unknown for release `%s'"%version)
+
+def supported(filename):
+    return ('pypy' not in filename) and ('Windows' not in filename)
+
+def add_version(release, distributions):
+    tag_name = release['tag_name']
+    download_urls = { f['name']: f['browser_download_url'] for f in release['assets'] }
+    # can assume that sha files are named similar to release files so can also check supported(on their names)
+    shas = dict([download_sha(url) for (name, url) in download_urls.items() if name.endswith('.sha256') and supported(os.path.basename(name)) and tag_name in name])
+    specs = [create_spec(filename, sha, download_urls[filename]) for (filename, sha) in shas.items() if supported(filename)]
+    
+
+    for distribution in distributions:
+        distribution_specs = [spec for spec in specs if distribution in spec['flavor'].lower()]
+        count = len(distribution_specs)
+
+        if count > 0:
+            output_file = out_dir / distribution_specs[0]['installer_filename']
+
+            logger.info('Writing %(count)d specs for %(distribution)s to %(output_file)s', locals())
+
+            script_str = install_script_fmt.format(
+                install_lines="\n".join([install_line_fmt.format_map(s) for s in distribution_specs]),
+                flavor=distribution_specs[0]['flavor'],
+            )
+
+            with open(output_file, 'w') as f:
+                f.write(script_str)
+        else:
+            logger.info('Did not find specs for %(distribution)s', locals())
+
+for release in requests.get(f'https://api.github.com/repos/{MINIFORGE_REPO}/releases').json():
+    version = release['tag_name']
+
+    if version in SKIPPED_RELEASES:
+        continue
+
+    logger.info('Looking for %(version)s in %(out_dir)s', locals())
+
+    # mambaforge is retired https://github.com/conda-forge/miniforge/releases/tag/24.11.2-0
+    if version_tuple(version) >= (24,11,2):
+        distributions = DISTRIBUTIONS
+    else:
+        distributions = DISTRIBUTIONS_PRE25
+
+    if any(not list(out_dir.glob(f'{distribution}*-{version}')) for distribution in distributions):
+        logger.info('Downloading %(version)s', locals())
+        add_version(release, distributions)

plugins/python-build/scripts/requirements.txt

@@ -0,0 +1 @@
+requests-html

plugins/python-build/share/python-build/2.1.3

@@ -0,0 +1,5 @@
+require_gcc
+install_package "readline-6.2" "https://ftpmirror.gnu.org/readline/readline-6.2.tar.gz#79a696070a058c233c72dd6ac697021cc64abd5ed51e59db867d66d196a89381" mac_readline --if has_broken_mac_readline
+install_package "Python-2.1.3" "https://www.python.org/ftp/python/2.1.3/Python-2.1.3.tgz#1bcb5bb587948bc38f36db60e15c376009c56c66570e563a08a82bf7f227afb9" standard verify_py21
+#install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+#install_package "pip-1.1" "https://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz#993804bb947d18508acee02141281c77d27677f8c14eaa64d6287a1c53ef01c8" python

plugins/python-build/share/python-build/2.2.3

@@ -0,0 +1,5 @@
+require_gcc
+install_package "readline-6.2" "https://ftpmirror.gnu.org/readline/readline-6.2.tar.gz#79a696070a058c233c72dd6ac697021cc64abd5ed51e59db867d66d196a89381" mac_readline --if has_broken_mac_readline
+install_package "Python-2.2.3" "https://www.python.org/ftp/python/2.2.3/Python-2.2.3.tgz#a8f92e6b89d47359fff0d1fbfe47f104afc77fd1cd5143e7332758b7bc100188" standard verify_py22
+#install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+#install_package "pip-1.1" "https://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz#993804bb947d18508acee02141281c77d27677f8c14eaa64d6287a1c53ef01c8" python

plugins/python-build/share/python-build/2.3.7

@@ -0,0 +1,5 @@
+require_gcc
+install_package "readline-6.2" "https://ftpmirror.gnu.org/readline/readline-6.2.tar.gz#79a696070a058c233c72dd6ac697021cc64abd5ed51e59db867d66d196a89381" mac_readline --if has_broken_mac_readline
+install_package "Python-2.3.7" "https://www.python.org/ftp/python/2.3.7/Python-2.3.7.tgz#969a9891dce9f50b13e54f9890acaf2be66715a5895bf9b11111f320c205b90e" standard verify_py23
+#install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+#install_package "pip-1.1" "https://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz#993804bb947d18508acee02141281c77d27677f8c14eaa64d6287a1c53ef01c8" python

plugins/python-build/share/python-build/2.4.0

@@ -0,0 +1,5 @@
+require_gcc
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.4" "https://www.python.org/ftp/python/2.4/Python-2.4.tgz#ff746de0fae8691c082414b42a2bb172da8797e6e8ff66c9a39d2e452f7034e9" standard verify_py24
+install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+install_package "pip-1.1" "https://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz#993804bb947d18508acee02141281c77d27677f8c14eaa64d6287a1c53ef01c8" python

plugins/python-build/share/python-build/2.4.1

@@ -0,0 +1,5 @@
+require_gcc
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.4.1" "https://www.python.org/ftp/python/2.4.1/Python-2.4.1.tgz#f449c3b167389324c525ad99d02376c518ac11e163dbbbc13bc88a5c7101fd00" standard verify_py24
+install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+install_package "pip-1.1" "https://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz#993804bb947d18508acee02141281c77d27677f8c14eaa64d6287a1c53ef01c8" python

plugins/python-build/share/python-build/2.4.2

@@ -0,0 +1,5 @@
+require_gcc
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.4.2" "https://www.python.org/ftp/python/2.4.2/Python-2.4.2.tgz#2653e1846e87fd9b3ee287fefc965c80c54646548b4913a22265b0dd54493adf" standard verify_py24
+install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+install_package "pip-1.1" "https://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz#993804bb947d18508acee02141281c77d27677f8c14eaa64d6287a1c53ef01c8" python

plugins/python-build/share/python-build/2.4.3

@@ -0,0 +1,5 @@
+require_gcc
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.4.3" "https://www.python.org/ftp/python/2.4.3/Python-2.4.3.tgz#985a413932f5e31e6280b37da6b285a3a0b2748c6786643989ed9b23de97e2d5" standard verify_py24
+install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+install_package "pip-1.1" "https://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz#993804bb947d18508acee02141281c77d27677f8c14eaa64d6287a1c53ef01c8" python

plugins/python-build/share/python-build/2.4.4

@@ -0,0 +1,5 @@
+require_gcc
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.4.4" "https://www.python.org/ftp/python/2.4.4/Python-2.4.4.tgz#92be6e20cbc3111d9dd0c016d72ef7914c23b879dc52df7ba28df97afbf12e2e" standard verify_py24
+install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+install_package "pip-1.1" "https://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz#993804bb947d18508acee02141281c77d27677f8c14eaa64d6287a1c53ef01c8" python

plugins/python-build/share/python-build/2.4.5

@@ -0,0 +1,5 @@
+require_gcc
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.4.5" "https://www.python.org/ftp/python/2.4.5/Python-2.4.5.tgz#6ae6f67a388a7f70ed3a20eebab5aae995ee433089d1f1724095c62f4b7389a1" standard verify_py24
+install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+install_package "pip-1.1" "https://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz#993804bb947d18508acee02141281c77d27677f8c14eaa64d6287a1c53ef01c8" python

plugins/python-build/share/python-build/2.4.6

@@ -0,0 +1,5 @@
+require_gcc
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.4.6" "https://www.python.org/ftp/python/2.4.6/Python-2.4.6.tgz#b03f269e826927f05c966cf4f4414f3c93ee2314960859e7f8375e24e82f8b02" standard verify_py24
+install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+install_package "pip-1.1" "https://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz#993804bb947d18508acee02141281c77d27677f8c14eaa64d6287a1c53ef01c8" python

plugins/python-build/share/python-build/2.5

@@ -1,14 +0,0 @@
-case "$OSTYPE" in
-linux*)
-  case $(uname -m) in
-  x86_64)
-    export LDFLAGS="-L/usr/lib/x86_64-linux-gnu" # to fix build on Debian amd64
-    ;;
-  esac
-  ;;
-esac
-
-require_gcc
-install_package "Python-2.5" "http://www.python.org/ftp/python/2.5/Python-2.5.tgz"
-install_package "distribute-0.6.28" "http://pypi.python.org/packages/source/d/distribute/distribute-0.6.28.tar.gz" python
-install_package "pip-1.1" "http://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz" python

plugins/python-build/share/python-build/2.5.0

@@ -0,0 +1,4 @@
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.5" "https://www.python.org/ftp/python/2.5/Python-2.5.tgz#d7bbf42e36003c6065cd19f3e67d283521858515ee923220f654131cebe1d8f2" standard verify_py25
+install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+install_package "pip-1.3.1" "https://pypi.python.org/packages/source/p/pip/pip-1.3.1.tar.gz#145eaa5d1ea1b062663da1f3a97780d7edea4c63c68a37c463b1deedf7bb4957" python

plugins/python-build/share/python-build/2.5.1

@@ -1,14 +1,4 @@
-case "$OSTYPE" in
-linux*)
-  case $(uname -m) in
-  x86_64)
-    export LDFLAGS="-L/usr/lib/x86_64-linux-gnu" # to fix build on Debian amd64
-    ;;
-  esac
-  ;;
-esac
-
-require_gcc
-install_package "Python-2.5.1" "http://www.python.org/ftp/python/2.5.1/Python-2.5.1.tgz"
-install_package "distribute-0.6.28" "http://pypi.python.org/packages/source/d/distribute/distribute-0.6.28.tar.gz" python
-install_package "pip-1.1" "http://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz" python
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.5.1" "https://www.python.org/ftp/python/2.5.1/Python-2.5.1.tgz#1f5caee846049ca30d996f9403eefdb996295c4af664867e35dcc5eb36e4e7e8" standard verify_py25
+install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+install_package "pip-1.3.1" "https://pypi.python.org/packages/source/p/pip/pip-1.3.1.tar.gz#145eaa5d1ea1b062663da1f3a97780d7edea4c63c68a37c463b1deedf7bb4957" python

plugins/python-build/share/python-build/2.5.2

@@ -1,14 +1,4 @@
-case "$OSTYPE" in
-linux*)
-  case $(uname -m) in
-  x86_64)
-    export LDFLAGS="-L/usr/lib/x86_64-linux-gnu" # to fix build on Debian amd64
-    ;;
-  esac
-  ;;
-esac
-
-require_gcc
-install_package "Python-2.5.2" "http://www.python.org/ftp/python/2.5.2/Python-2.5.2.tgz"
-install_package "distribute-0.6.28" "http://pypi.python.org/packages/source/d/distribute/distribute-0.6.28.tar.gz" python
-install_package "pip-1.1" "http://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz" python
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.5.2" "https://www.python.org/ftp/python/2.5.2/Python-2.5.2.tgz#834afe8a88adaf623b05ac5dd6700dd5bb5d0d5553fc74ad529359a3496e4ae3" standard verify_py25
+install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+install_package "pip-1.3.1" "https://pypi.python.org/packages/source/p/pip/pip-1.3.1.tar.gz#145eaa5d1ea1b062663da1f3a97780d7edea4c63c68a37c463b1deedf7bb4957" python

plugins/python-build/share/python-build/2.5.3

@@ -1,14 +1,4 @@
-case "$OSTYPE" in
-linux*)
-  case $(uname -m) in
-  x86_64)
-    export LDFLAGS="-L/usr/lib/x86_64-linux-gnu" # to fix build on Debian amd64
-    ;;
-  esac
-  ;;
-esac
-
-require_gcc
-install_package "Python-2.5.3" "http://www.python.org/ftp/python/2.5.3/Python-2.5.3.tgz"
-install_package "distribute-0.6.28" "http://pypi.python.org/packages/source/d/distribute/distribute-0.6.28.tar.gz" python
-install_package "pip-1.1" "http://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz" python
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.5.3" "https://www.python.org/ftp/python/2.5.3/Python-2.5.3.tgz#c3fee607d20a77dfb72ea2e627eb4d95d25c735603435abde62c57015a0445bd" standard verify_py25
+install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+install_package "pip-1.3.1" "https://pypi.python.org/packages/source/p/pip/pip-1.3.1.tar.gz#145eaa5d1ea1b062663da1f3a97780d7edea4c63c68a37c463b1deedf7bb4957" python

plugins/python-build/share/python-build/2.5.4

@@ -1,14 +1,4 @@
-case "$OSTYPE" in
-linux*)
-  case $(uname -m) in
-  x86_64)
-    export LDFLAGS="-L/usr/lib/x86_64-linux-gnu" # to fix build on Debian amd64
-    ;;
-  esac
-  ;;
-esac
-
-require_gcc
-install_package "Python-2.5.4" "http://www.python.org/ftp/python/2.5.4/Python-2.5.4.tgz"
-install_package "distribute-0.6.28" "http://pypi.python.org/packages/source/d/distribute/distribute-0.6.28.tar.gz" python
-install_package "pip-1.1" "http://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz" python
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.5.4" "https://www.python.org/ftp/python/2.5.4/Python-2.5.4.tgz#3d3b205611ee503a38a9433d5645a571668420bb219242c7f51af85f05664da6" standard verify_py25
+install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+install_package "pip-1.3.1" "https://pypi.python.org/packages/source/p/pip/pip-1.3.1.tar.gz#145eaa5d1ea1b062663da1f3a97780d7edea4c63c68a37c463b1deedf7bb4957" python

plugins/python-build/share/python-build/2.5.5

@@ -1,14 +1,4 @@
-case "$OSTYPE" in
-linux*)
-  case $(uname -m) in
-  x86_64)
-    export LDFLAGS="-L/usr/lib/x86_64-linux-gnu" # to fix build on Debian amd64
-    ;;
-  esac
-  ;;
-esac
-
-require_gcc
-install_package "Python-2.5.5" "http://www.python.org/ftp/python/2.5.5/Python-2.5.5.tgz"
-install_package "distribute-0.6.28" "http://pypi.python.org/packages/source/d/distribute/distribute-0.6.28.tar.gz" python
-install_package "pip-1.1" "http://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz" python
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.5.5" "https://www.python.org/ftp/python/2.5.5/Python-2.5.5.tgz#03be1019c4fe93daeb53ba9e4294bf22a8ed4cb854cbd57e24e16f6bf63e2392" standard verify_py25
+install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+install_package "pip-1.3.1" "https://pypi.python.org/packages/source/p/pip/pip-1.3.1.tar.gz#145eaa5d1ea1b062663da1f3a97780d7edea4c63c68a37c463b1deedf7bb4957" python

plugins/python-build/share/python-build/2.5.6

@@ -1,14 +1,4 @@
-case "$OSTYPE" in
-linux*)
-  case $(uname -m) in
-  x86_64)
-    export LDFLAGS="-L/usr/lib/x86_64-linux-gnu" # to fix build on Debian amd64
-    ;;
-  esac
-  ;;
-esac
-
-require_gcc
-install_package "Python-2.5.6" "http://www.python.org/ftp/python/2.5.6/Python-2.5.6.tgz"
-install_package "distribute-0.6.28" "http://pypi.python.org/packages/source/d/distribute/distribute-0.6.28.tar.gz" python
-install_package "pip-1.1" "http://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz" python
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.5.6" "https://www.python.org/ftp/python/2.5.6/Python-2.5.6.tgz#c2e4377597241b1065677d23327c04d0f41945d370c61a491cc88be367234c5d" standard verify_py25
+install_package "setuptools-1.4.2" "https://pypi.python.org/packages/source/s/setuptools/setuptools-1.4.2.tar.gz#263986a60a83aba790a5bffc7d009ac88114ba4e908e5c90e453b3bf2155dbbd" python
+install_package "pip-1.3.1" "https://pypi.python.org/packages/source/p/pip/pip-1.3.1.tar.gz#145eaa5d1ea1b062663da1f3a97780d7edea4c63c68a37c463b1deedf7bb4957" python

plugins/python-build/share/python-build/2.6.0

@@ -0,0 +1,3 @@
+install_package "openssl-1.0.2k" "https://www.openssl.org/source/old/1.0.2/openssl-1.0.2k.tar.gz#6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0" mac_openssl --if has_broken_mac_openssl
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.6" "https://www.python.org/ftp/python/2.6/Python-2.6.tgz#7c2f21a968a737a59ed0729f4b1dc154dc3aa183c20be96055186fe43c6742d0" standard verify_py26 ensurepip

plugins/python-build/share/python-build/2.6.1

@@ -0,0 +1,3 @@
+install_package "openssl-1.0.2k" "https://www.openssl.org/source/old/1.0.2/openssl-1.0.2k.tar.gz#6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0" mac_openssl --if has_broken_mac_openssl
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.6.1" "https://www.python.org/ftp/python/2.6.1/Python-2.6.1.tgz#fb65e93678e1327e3e8559cc56e1e00ed8c07162b21287a3502677892c5c515c" standard verify_py26 ensurepip

plugins/python-build/share/python-build/2.6.2

@@ -0,0 +1,3 @@
+install_package "openssl-1.0.2k" "https://www.openssl.org/source/old/1.0.2/openssl-1.0.2k.tar.gz#6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0" mac_openssl --if has_broken_mac_openssl
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.6.2" "https://www.python.org/ftp/python/2.6.2/Python-2.6.2.tgz#e37ecdf249f248f4fea227adbca09c778670b64fcb5e45947ec3e093cbc12c86" standard verify_py26 ensurepip

plugins/python-build/share/python-build/2.6.3

@@ -0,0 +1,3 @@
+install_package "openssl-1.0.2k" "https://www.openssl.org/source/old/1.0.2/openssl-1.0.2k.tar.gz#6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0" mac_openssl --if has_broken_mac_openssl
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.6.3" "https://www.python.org/ftp/python/2.6.3/Python-2.6.3.tgz#a71b55540690425fd82ab00819aeb92c1b23cbb4730a0ccd2e25c833b22a812e" standard verify_py26 ensurepip

plugins/python-build/share/python-build/2.6.4

@@ -0,0 +1,3 @@
+install_package "openssl-1.0.2k" "https://www.openssl.org/source/old/1.0.2/openssl-1.0.2k.tar.gz#6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0" mac_openssl --if has_broken_mac_openssl
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.6.4" "https://www.python.org/ftp/python/2.6.4/Python-2.6.4.tgz#1a25a47506e4165704cfe2b07c0a064b0b5762a2d18b8fbdad5af688aeacd252" standard verify_py26 ensurepip

plugins/python-build/share/python-build/2.6.5

@@ -0,0 +1,3 @@
+install_package "openssl-1.0.2k" "https://www.openssl.org/source/old/1.0.2/openssl-1.0.2k.tar.gz#6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0" mac_openssl --if has_broken_mac_openssl
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.6.5" "https://www.python.org/ftp/python/2.6.5/Python-2.6.5.tgz#b331dafdce3361834fee783795d4f68ae7cf7d379e9137c2d8e8531cea615ede" standard verify_py26 ensurepip

plugins/python-build/share/python-build/2.6.6

@@ -1,14 +1,3 @@
-before_install_package() {
-  local package_name="$1"
-  case "$package_name" in
-  Python*)
-    fetch_url "https://raw.github.com/saghul/pythonz/346450868902fed0fe654c472b7b58e2e31fde70/pythonz/patches/all/common/patch-setup.py.diff" > setup.patch
-    patch -p0 < setup.patch
-  ;;
-  esac
-}
-
-require_gcc
-install_package "Python-2.6.6" "http://www.python.org/ftp/python/2.6.6/Python-2.6.6.tgz"
-install_package "distribute-0.6.28" "http://pypi.python.org/packages/source/d/distribute/distribute-0.6.28.tar.gz" python
-install_package "pip-1.1" "http://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz" python
+install_package "openssl-1.0.2k" "https://www.openssl.org/source/old/1.0.2/openssl-1.0.2k.tar.gz#6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0" mac_openssl --if has_broken_mac_openssl
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.6.6" "https://www.python.org/ftp/python/2.6.6/Python-2.6.6.tgz#372f66db46d773214e4619df1794a26449158f626138d4d2141a64c2f017fae1" standard verify_py26 ensurepip

plugins/python-build/share/python-build/2.6.7

@@ -1,14 +1,3 @@
-before_install_package() {
-  local package_name="$1"
-  case "$package_name" in
-  Python*)
-    fetch_url "https://raw.github.com/saghul/pythonz/346450868902fed0fe654c472b7b58e2e31fde70/pythonz/patches/all/common/patch-setup.py.diff" > setup.patch
-    patch -p0 < setup.patch
-  ;;
-  esac
-}
-
-require_gcc
-install_package "Python-2.6.7" "http://www.python.org/ftp/python/2.6.7/Python-2.6.7.tgz"
-install_package "distribute-0.6.28" "http://pypi.python.org/packages/source/d/distribute/distribute-0.6.28.tar.gz" python
-install_package "pip-1.1" "http://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz" python
+install_package "openssl-1.0.2k" "https://www.openssl.org/source/old/1.0.2/openssl-1.0.2k.tar.gz#6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0" mac_openssl --if has_broken_mac_openssl
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.6.7" "https://www.python.org/ftp/python/2.6.7/Python-2.6.7.tgz#a8093eace4cfd3e06b05f0deb5d765e3c6cec65908048640a8cadd7a948b3826" standard verify_py26 ensurepip

plugins/python-build/share/python-build/2.6.8

@@ -1,14 +1,3 @@
-before_install_package() {
-  local package_name="$1"
-  case "$package_name" in
-  Python*)
-    fetch_url "https://raw.github.com/saghul/pythonz/346450868902fed0fe654c472b7b58e2e31fde70/pythonz/patches/all/common/patch-setup.py.diff" > setup.patch
-    patch -p0 < setup.patch
-  ;;
-  esac
-}
-
-require_gcc
-install_package "Python-2.6.8" "http://www.python.org/ftp/python/2.6.8/Python-2.6.8.tgz"
-install_package "distribute-0.6.28" "http://pypi.python.org/packages/source/d/distribute/distribute-0.6.28.tar.gz" python
-install_package "pip-1.1" "http://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz" python
+install_package "openssl-1.0.2k" "https://www.openssl.org/source/old/1.0.2/openssl-1.0.2k.tar.gz#6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0" mac_openssl --if has_broken_mac_openssl
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.6.8" "https://www.python.org/ftp/python/2.6.8/Python-2.6.8.tgz#5bf02a75ffa2fcaa5a3cabb8201998519b045541975622316888ea468d9512f7" standard verify_py26 ensurepip

plugins/python-build/share/python-build/2.6.9

@@ -0,0 +1,3 @@
+install_package "openssl-1.0.2k" "https://www.openssl.org/source/old/1.0.2/openssl-1.0.2k.tar.gz#6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0" mac_openssl --if has_broken_mac_openssl
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.6.9" "https://www.python.org/ftp/python/2.6.9/Python-2.6.9.tgz#7277b1285d8a82f374ef6ebaac85b003266f7939b3f2a24a3af52f9523ac94db" standard verify_py26 ensurepip

plugins/python-build/share/python-build/2.7

@@ -1,14 +0,0 @@
-before_install_package() {
-  local package_name="$1"
-  case "$package_name" in
-  Python*)
-    fetch_url "https://raw.github.com/saghul/pythonz/346450868902fed0fe654c472b7b58e2e31fde70/pythonz/patches/all/common/patch-setup.py.diff" > setup.patch
-    patch -p0 < setup.patch
-  ;;
-  esac
-}
-
-require_gcc
-install_package "Python-2.7" "http://www.python.org/ftp/python/2.7/Python-2.7.tgz"
-install_package "distribute-0.6.28" "http://pypi.python.org/packages/source/d/distribute/distribute-0.6.28.tar.gz" python
-install_package "pip-1.1" "http://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz" python

plugins/python-build/share/python-build/2.7-dev

@@ -0,0 +1,4 @@
+prefer_openssl11
+install_package "openssl-1.1.0j" "https://www.openssl.org/source/old/1.1.0/openssl-1.1.0j.tar.gz#31bec6c203ce1a8e93d5994f4ed304c63ccf07676118b6634edded12ad1b3246" mac_openssl --if has_broken_mac_openssl
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_git "Python-2.7-dev" "https://github.com/python/cpython" "2.7" standard verify_py27 copy_python_gdb ensurepip

plugins/python-build/share/python-build/2.7.0

@@ -0,0 +1,3 @@
+install_package "openssl-1.0.2k" "https://www.openssl.org/source/old/1.0.2/openssl-1.0.2k.tar.gz#6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0" mac_openssl --if has_broken_mac_openssl
+install_package "readline-8.0" "https://ftpmirror.gnu.org/readline/readline-8.0.tar.gz#e339f51971478d369f8a053a330a190781acb9864cf4c541060f12078948e461" mac_readline --if has_broken_mac_readline
+install_package "Python-2.7" "https://www.python.org/ftp/python/2.7/Python-2.7.tgz#5670dd6c0c93b0b529781d070852f7b51ce6855615b16afcd318341af2910fb5" standard verify_py27 copy_python_gdb ensurepip