mirror of https://github.com/python/cpython
a60ddd31be
A backslash-character pair that is not a valid escape sequence now
generates a SyntaxWarning, instead of DeprecationWarning. For
example, re.compile("\d+\.\d+") now emits a SyntaxWarning ("\d" is an
invalid escape sequence), use raw strings for regular expression:
re.compile(r"\d+\.\d+"). In a future Python version, SyntaxError will
eventually be raised, instead of SyntaxWarning.
Octal escapes with value larger than 0o377 (ex: "\477"), deprecated
in Python 3.11, now produce a SyntaxWarning, instead of
DeprecationWarning. In a future Python version they will be
eventually a SyntaxError.
codecs.escape_decode() and codecs.unicode_escape_decode() are left
unchanged: they still emit DeprecationWarning.
* The parser only emits SyntaxWarning for Python 3.12 (feature
version), and still emits DeprecationWarning on older Python
versions.
* Fix SyntaxWarning by using raw strings in Tools/c-analyzer/ and
wasm_build.py.
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| .. | ||
| 2.0.rst | ||
| 2.1.rst | ||
| 2.2.rst | ||
| 2.3.rst | ||
| 2.4.rst | ||
| 2.5.rst | ||
| 2.6.rst | ||
| 2.7.rst | ||
| 3.0.rst | ||
| 3.1.rst | ||
| 3.2.rst | ||
| 3.3.rst | ||
| 3.4.rst | ||
| 3.5.rst | ||
| 3.6.rst | ||
| 3.7.rst | ||
| 3.8.rst | ||
| 3.9.rst | ||
| 3.10.rst | ||
| 3.11.rst | ||
| 3.12.rst | ||
| changelog.rst | ||
| index.rst | ||