[issue31058] FileFinder fails to find modules for import if modules are created at runtime and don't result in a directory mtime update

[Ned Deily]

Changes by Ned Deily <nad at python.org>:


----------
nosy: +brett.cannon, eric.snow, ncoghlan

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue31058>
_______________________________________