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| author | Ma Lin <animalize@users.noreply.github.com> | 2022-03-29 14:31:01 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-03-29 14:31:01 (GMT) |
| commit | 356997cccc21a3391175d20e9ef03d434675b496 (patch) | |
| tree | 16392c0b0212d7680d04f0ccb85fa6e13d812a9a /Doc/whatsnew | |
| parent | 788154919c2d843a0a995994bf2aed2d074761ec (diff) | |
| download | cpython-356997cccc21a3391175d20e9ef03d434675b496.zip cpython-356997cccc21a3391175d20e9ef03d434675b496.tar.gz cpython-356997cccc21a3391175d20e9ef03d434675b496.tar.bz2 | |
bpo-35859: Fix a few long-standing bugs in re engine (GH-12427)
In rare cases, capturing group could get wrong result.
Regular expression engines in Perl and Java have similar bugs.
The new behavior now matches the behavior of more modern
RE engines: in the regex module and in PHP, Ruby and Node.js.
Diffstat (limited to 'Doc/whatsnew')
| -rw-r--r-- | Doc/whatsnew/3.11.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.11.rst b/Doc/whatsnew/3.11.rst index 41e4659..837d8c8 100644 --- a/Doc/whatsnew/3.11.rst +++ b/Doc/whatsnew/3.11.rst @@ -718,6 +718,11 @@ Changes in the Python API deprecated since Python 3.6. (Contributed by Serhiy Storchaka in :issue:`47066`.) +* :mod:`re` module: Fix a few long-standing bugs where, in rare cases, + capturing group could get wrong result. So the result may be different than + before. + (Contributed by Ma Lin in :issue:`35859`.) + * The *population* parameter of :func:`random.sample` must be a sequence. Automatic conversion of sets to lists is no longer supported. If the sample size is larger than the population size, a :exc:`ValueError` is raised. |