[issue21052] Consider dropping ImportWarning for empty sys.path_hooks and sys.meta_path

[Brett Cannon]

Brett Cannon added the comment:

I should also say that dropping warnings leaves only a single case of ImportWarning related to empty directory names (in relation to Finder.find_module()). Once that can go away that will eliminate all uses of warnings in importlib and thus won't necessitate importing it in this case.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21052>
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