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| author |   Ivan Levkivskyi <levkivskyi@gmail.com> | 2018-02-18 12:41:58 +0000 |
|---|---|---|
| committer |   GitHub <noreply@github.com> | 2018-02-18 12:41:58 +0000 |
| commit | 03e3c340a0156891a036d6dbdb9e348108826255 (patch) | |
| tree | 5b897f150d3855868c7cf3c2fb1c7c6a313d4e31 /Doc | |
| parent | Add missing backslashes to get_externals.bat (GH-5731) (diff) | |
| download | cpython-03e3c340a0156891a036d6dbdb9e348108826255.tar.gz cpython-03e3c340a0156891a036d6dbdb9e348108826255.tar.bz2 cpython-03e3c340a0156891a036d6dbdb9e348108826255.zip | |
bpo-31333: Re-implement ABCMeta in C (#5273)
This adds C versions of methods used by ABCMeta that
improve performance of various ABC operations.
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/whatsnew/3.7.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.7.rst b/Doc/whatsnew/3.7.rst index 7c98c7cfa38..c35f07c0eab 100644 --- a/Doc/whatsnew/3.7.rst +++ b/Doc/whatsnew/3.7.rst @@ -853,6 +853,12 @@ Optimizations * Constant folding is moved from peephole optimizer to new AST optimizer. (Contributed by Eugene Toder and INADA Naoki in :issue:`29469`) +* Most functions and methods in :mod:`abc` have been rewrittent in C. + This makes creation of abstract base classes, and calling :func:`isinstance` + and :func:`issubclass` on them 1.5x faster. This also reduces Python + start-up time by up to 10%. (Contributed by Ivan Levkivskyi and INADA Naoki + in :issue:`31333`) + Build and C API Changes ======================= |