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gh-99204: Calculate base_executable by alternate names in POSIX venvs (GH-99206)

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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>
This commit is contained in:
Vincent Fazio 2022-11-10 10:26:42 -06:00 • committed by GitHub
parent f1680c3fbf
commit c41b13d39c
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31
Lib/test/test_getpath.py
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@ -382,6 +382,37 @@ class MockGetPathTests(unittest.TestCase):
actual = getpath(ns, expected)
self.assertEqual(expected, actual)
def test_venv_changed_name_copy_posix(self):
"Test a venv --copies layout on *nix that lacks a distributed 'python'"
ns = MockPosixNamespace(
argv0="python",
PREFIX="/usr",
ENV_PATH="/venv/bin:/usr/bin",
)
ns.add_known_xfile("/usr/bin/python9")
ns.add_known_xfile("/venv/bin/python")
ns.add_known_file("/usr/lib/python9.8/os.py")
ns.add_known_dir("/usr/lib/python9.8/lib-dynload")
ns.add_known_file("/venv/pyvenv.cfg", [
r"home = /usr/bin"
])
expected = dict(
executable="/venv/bin/python",
prefix="/usr",
exec_prefix="/usr",
base_executable="/usr/bin/python9",
base_prefix="/usr",
base_exec_prefix="/usr",
module_search_paths_set=1,
module_search_paths=[
"/usr/lib/python98.zip",
"/usr/lib/python9.8",
"/usr/lib/python9.8/lib-dynload",
],
)
actual = getpath(ns, expected)
self.assertEqual(expected, actual)
def test_symlink_normal_posix(self):
"Test a 'standard' install layout via symlink on *nix"
ns = MockPosixNamespace(