[issue15578] Crash when modifying sys.modules during import

[Roundup Robot]

Roundup Robot added the comment:

New changeset 2d6dd8402d77 by Eric Snow in branch '2.7':
Issue #15578: Correctly incref the parent module while importing.
https://hg.python.org/cpython/rev/2d6dd8402d77

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nosy: +python-dev

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue15578>
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