[Python-checkins] [python/cpython] d7e643: bpo-28598: Support __rmod__ for RHS subclasses of ...
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Thu Feb 23 08:38:06 EST 2017
Branch: refs/heads/master
Home: https://github.com/python/cpython
Commit: d7e64337ef45085792b382a09f5b3a45d3687c8c
https://github.com/python/cpython/commit/d7e64337ef45085792b382a09f5b3a45d3687c8c
Author: Martijn Pieters <github.com at zopatista.com>
Date: 2017-02-23 (Thu, 23 Feb 2017)
Changed paths:
M Lib/test/test_unicode.py
M Misc/NEWS
M Python/ceval.c
Log Message:
-----------
bpo-28598: Support __rmod__ for RHS subclasses of str in % string formatting operations (#51)
When you use `'%s' % SubClassOfStr()`, where `SubClassOfStr.__rmod__` exists, the reverse operation is ignored as normally such string formatting operations use the `PyUnicode_Format()` fast path. This patch tests for subclasses of `str` first and picks the slow path in that case.
Patch by Martijn Pieters.
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