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[3.11] gh-116811: Ensure MetadataPathFinder.invalidate_caches is reachable when delegated through PathFinder. (GH-116812) (#116865)

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* Make MetadataPathFinder a proper classmethod.

* In PathFinder.invalidate_caches, also invoke MetadataPathFinder.invalidate_caches.

* Add blurb
(cherry picked from commit 5f52d20a93)
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Jason R. Coombs 2024-03-15 09:59:32 -04:00 • committed by GitHub
parent eaefa0b1f7
commit 8acd6ca521
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Lib/importlib/_bootstrap_external.py
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@ -1405,6 +1405,9 @@ class PathFinder:
# https://bugs.python.org/issue45703
_NamespacePath._epoch += 1
from importlib.metadata import MetadataPathFinder
MetadataPathFinder.invalidate_caches()
@staticmethod
def _path_hooks(path):
"""Search sys.path_hooks for a finder for 'path'."""