Make sur that PYENV_TEST_DIR is created if mktemp failed
mock python3 usage by updating create_executable function
fix test by adding the right PATH
update path in plugin test
replace for loop with while read
don't use symlink for stub
Did not implement customizable priority due to unclear use feedback and more compilation in the code, can decide and do that separately
Tcl/Tk from MacPorts support is omitted due to CPython's only being compatible with
Tcl/Tk 9 since 3.12.5 and 3.13.0.
Co-authored-by: Ivan Pozdeev <vano@mail.mipt.ru>
