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gh-93461: Invalidate sys.path_importer_cache entries with relative paths (GH-93653)

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(cherry picked from commit 09243b898a)

Co-authored-by: Christian Heimes <christian@python.org>
This commit is contained in:
Miss Islington (bot) 2022-06-12 23:29:59 -07:00 • committed by GitHub
parent 536af65e96
commit 3d1c080591
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5 changed files with 36 additions and 14 deletions
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13
Lib/importlib/_bootstrap_external.py
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@ -1394,7 +1394,9 @@ class PathFinder:
"""Call the invalidate_caches() method on all path entry finders
stored in sys.path_importer_caches (where implemented)."""
for name, finder in list(sys.path_importer_cache.items()):
if finder is None:
# Drop entry if finder name is a relative path. The current
# working directory may have changed.
if finder is None or not _path_isabs(name):
del sys.path_importer_cache[name]
elif hasattr(finder, 'invalidate_caches'):
finder.invalidate_caches()
@ -1562,9 +1564,12 @@ class FileFinder:
loaders.extend((suffix, loader) for suffix in suffixes)
self._loaders = loaders
# Base (directory) path
self.path = path or '.'
if not _path_isabs(self.path):
self.path = _path_join(_os.getcwd(), self.path)
if not path or path == '.':
self.path = _os.getcwd()
elif not _path_isabs(path):
self.path = _path_join(_os.getcwd(), path)
else:
self.path = path
self._path_mtime = -1
self._path_cache = set()
self._relaxed_path_cache = set()