[issue17330] Check st_nlink in addition to st_mtime to invalidate FileFinder cache

[Antoine Pitrou]

Antoine Pitrou added the comment:

Well, importlib.invalidate_caches() is not a workaround, it's really the right way to solve your issue (for example if instead of writing a new module, you modify an existing one: st_nlink will then remain the same).

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17330>
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