[issue34457] Missing NULL check in alias_for_import_name() from Python/ast.c

[Serhiy Storchaka]

Change by Serhiy Storchaka <storchaka+cpython at gmail.com>:


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resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed
versions:  -Python 3.4, Python 3.5

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue34457>
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