[issue28818] simplify lookdict functions

[Roundup Robot]

Roundup Robot added the comment:

New changeset 8d4b2c6a0a7f by INADA Naoki in branch 'default':
Issue #28818: Simplify lookdict functions
https://hg.python.org/cpython/rev/8d4b2c6a0a7f

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nosy: +python-dev

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue28818>
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