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| author | R David Murray <rdmurray@bitdance.com> | 2016-09-08 19:34:08 (GMT) |
|---|---|---|
| committer | R David Murray <rdmurray@bitdance.com> | 2016-09-08 19:34:08 (GMT) |
| commit | 110b6fecbbb86143a4acb568f50eab2c870e7d34 (patch) | |
| tree | ccc11fe14604c7c08bb750b392f67559a3cfd962 /Doc/reference/lexical_analysis.rst | |
| parent | 186122ead26f3ae4c2bc9f6715d2a29d339fdc5a (diff) | |
| download | cpython-110b6fecbbb86143a4acb568f50eab2c870e7d34.zip cpython-110b6fecbbb86143a4acb568f50eab2c870e7d34.tar.gz cpython-110b6fecbbb86143a4acb568f50eab2c870e7d34.tar.bz2 | |
#27364: Deprecate invalid escape strings in str/byutes.
Patch by Emanuel Barry, reviewed by Serhiy Storchaka and Martin Panter.
Diffstat (limited to 'Doc/reference/lexical_analysis.rst')
| -rw-r--r-- | Doc/reference/lexical_analysis.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Doc/reference/lexical_analysis.rst b/Doc/reference/lexical_analysis.rst index b3b71af..48f2043 100644 --- a/Doc/reference/lexical_analysis.rst +++ b/Doc/reference/lexical_analysis.rst @@ -560,6 +560,10 @@ is more easily recognized as broken.) It is also important to note that the escape sequences only recognized in string literals fall into the category of unrecognized escapes for bytes literals. + .. versionchanged:: 3.6 + Unrecognized escape sequences produce a DeprecationWarning. In + some future version of Python they will be a SyntaxError. + Even in a raw literal, quotes can be escaped with a backslash, but the backslash remains in the result; for example, ``r"\""`` is a valid string literal consisting of two characters: a backslash and a double quote; ``r"\"`` |