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Issue #27030: Unknown escapes in re.sub() replacement template are allowed

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again.  But they still are deprecated and will be disabled in 3.7.
This commit is contained in:
Serhiy Storchaka 2016-12-06 19:15:29 +02:00
parent b0f75c520e
commit 53c53ea4c5
5 changed files with 16 additions and 5 deletions
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7
Doc/library/re.rst
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@ -758,7 +758,12 @@ form.
Unmatched groups are replaced with an empty string.
.. versionchanged:: 3.6
Unknown escapes consisting of ``'\'`` and an ASCII letter now are errors.
Unknown escapes in *pattern* consisting of ``'\'`` and an ASCII letter
now are errors.
.. deprecated-removed:: 3.5 3.7
Unknown escapes in *repl* consist of ``'\'`` and ASCII letter now raise
a deprecation warning and will be forbidden in Python 3.7.
.. function:: subn(pattern, repl, string, count=0, flags=0)