[issue14043] Speed-up importlib's _FileFinder

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

Patch with light-weight alternative.

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Added file: http://bugs.python.org/file24551/listdir_cache.patch

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue14043>
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