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Prevent sys.prefix from leaking into child process on macOS #1648

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Merged
gaborbernat merged 4 commits into from
Feb 21, 2020
Merged

Prevent sys.prefix from leaking into child process on macOS #1648

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d00cdb8
Prevent sys.prefix from leaking into child process on macOS
Feb 21, 2020
83d7443
Unset __PYVENV_LAUNCHER__ unconditionally
Feb 21, 2020
b15f849
Do not modify os.environ for the parent process
Feb 21, 2020
3211a2f
add changelog
gaborbernat Feb 21, 2020
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add changelog 
Signed-off-by: Bernat Gabor <bgabor8@bloomberg.net>
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@gaborbernat
gaborbernat committed Feb 21, 2020
commit 3211a2f16b850751a5482ae12390ec888dd076c6
2 changes: 2 additions & 0 deletions docs/changelog/1643.bugfix.rst
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@@ -0,0 +1,2 @@
Fix cross interpreter support when the host python sets ``sys.base_executable`` based on ``__PYVENV_LAUNCHER__`` -
by :user:`cjolowicz`
4 changes: 2 additions & 2 deletions src/virtualenv/discovery/cached_py_info.py
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Expand Up @@ -101,9 +101,9 @@ def _get_fs_path():
def _run_subprocess(cls, exe):
resolved_path = Path(os.path.abspath(__file__)).parent / "py_info.py"
with ensure_file_on_disk(resolved_path) as resolved_path:
cmd = [exe, "-s", str(resolved_path)]

# Prevent sys.prefix from leaking into the child process.
cmd = [exe, "-s", str(resolved_path)]
# prevent sys.prefix from leaking into the child process - see https://bugs.python.org/issue22490
env = os.environ.copy()
env.pop("__PYVENV_LAUNCHER__", None)

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