[issue26538] regrtest: setup_tests() must not replace module.__path__ (_NamespacePath) with a simple list // importlib & abspath

[Brett Cannon]

Brett Cannon added the comment:

Figures. If you do decide to centralize the code then put it in importlib.util and please don't make it public. It's something that should only be done once and not something most people should have to worry about.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue26538>
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