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| author | Vincent Fazio <vfazio@gmail.com> | 2022-11-10 16:26:42 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-11-10 16:26:42 (GMT) |
| commit | c41b13d39ccc2d6e239782de99ba8e3cdd061e5a (patch) | |
| tree | 075f0b3abf5024b4aab968a7d8e5e34eaf35b144 /Modules/getpath.py | |
| parent | f1680c3fbf7d18a1b3a5b390c433298bb6b9fcac (diff) | |
| download | cpython-c41b13d39ccc2d6e239782de99ba8e3cdd061e5a.zip cpython-c41b13d39ccc2d6e239782de99ba8e3cdd061e5a.tar.gz cpython-c41b13d39ccc2d6e239782de99ba8e3cdd061e5a.tar.bz2 | |
gh-99204: Calculate base_executable by alternate names in POSIX venvs (GH-99206)
Check to see if `base_executable` exists. If it does not, attempt
to use known alternative names of the python binary to find an
executable in the path specified by `home`.
If no alternative is found, previous behavior is preserved.
Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Diffstat (limited to 'Modules/getpath.py')
| -rw-r--r-- | Modules/getpath.py | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/Modules/getpath.py b/Modules/getpath.py index 90a6473..d24b152 100644 --- a/Modules/getpath.py +++ b/Modules/getpath.py @@ -375,6 +375,25 @@ if not home and not py_setpath: pass if not base_executable: base_executable = joinpath(executable_dir, basename(executable)) + # It's possible "python" is executed from within a posix venv but that + # "python" is not available in the "home" directory as the standard + # `make install` does not create it and distros often do not provide it. + # + # In this case, try to fall back to known alternatives + if os_name != 'nt' and not isfile(base_executable): + base_exe = basename(executable) + for candidate in (DEFAULT_PROGRAM_NAME, f'python{VERSION_MAJOR}.{VERSION_MINOR}'): + candidate += EXE_SUFFIX if EXE_SUFFIX else '' + if base_exe == candidate: + continue + candidate = joinpath(executable_dir, candidate) + # Only set base_executable if the candidate exists. + # If no candidate succeeds, subsequent errors related to + # base_executable (like FileNotFoundError) remain in the + # context of the original executable name + if isfile(candidate): + base_executable = candidate + break break else: venv_prefix = None |