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15 changes: 15 additions & 0 deletions Lib/test/test_venv.py
Original file line number Diff line number Diff line change
Expand Up @@ -504,6 +504,21 @@ def test_unicode_in_batch_file(self):
)
self.assertEqual(out.strip(), '0')

@unittest.skipUnless(os.name == 'nt' and can_symlink(),
'symlinks on Windows')
def test_failed_symlink(self):
"""
Test handling of failed symlinks on Windows.
"""
rmtree(self.env_dir)
env_dir = os.path.join(os.path.realpath(self.env_dir), 'venv')
with patch('os.symlink') as mock_symlink:
mock_symlink.side_effect = OSError()
builder = venv.EnvBuilder(clear=True, symlinks=True)
_, err = self.run_with_capture(builder.create, env_dir)
filepath_regex = r"'[A-Z]:\\\\(?:[^\\\\]+\\\\)*[^\\\\]+'"
self.assertRegex(err, rf"Unable to symlink {filepath_regex} to {filepath_regex}")

@requireVenvCreate
def test_multiprocessing(self):
"""
Expand Down
2 changes: 1 addition & 1 deletion Lib/venv/__init__.py
Original file line number Diff line number Diff line change
Expand Up @@ -393,7 +393,7 @@ def setup_python(self, context):
os.symlink(src, dest)
to_unlink.append(dest)
except OSError:
logger.warning('Unable to symlink %r to %r', src, dst)
logger.warning('Unable to symlink %r to %r', src, dest)
do_copies = True
for f in to_unlink:
try:
Expand Down
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Fix invalid variable in :mod:`venv` handling of failed symlink on Windows
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