[issue1644818] Allow built-in packages and submodules as well as top-level modules

[Nick Coghlan]

Nick Coghlan added the comment:

Petr, this could be an interesting issue to take a look at from the point of view of the builtin and extension module import changes in Python 3.5.

Given the extent of the import system changes across 3.3/4/5, it's even conceivable we may have made this work somewhere along the line. In that case we'd still need a new regression test to ensure it keeps working - we didn't even have a regression test to ensure extension module imports from inside a package worked, so we definitely don't have one for builtin submodules.

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nosy: +encukou

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue1644818>
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