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| author | INADA Naoki <methane@users.noreply.github.com> | 2017-10-05 08:19:26 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-10-05 08:19:26 (GMT) |
| commit | c1c47c166b1012d34f2c6e111ee9ccb5c4d12de7 (patch) | |
| tree | 8abd62a2c34b8c1d6c9aa37b0ab47e216162edcf /Misc | |
| parent | af810b35b494ef1d255d4bf340b92a9dad446995 (diff) | |
| download | cpython-c1c47c166b1012d34f2c6e111ee9ccb5c4d12de7.zip cpython-c1c47c166b1012d34f2c6e111ee9ccb5c4d12de7.tar.gz cpython-c1c47c166b1012d34f2c6e111ee9ccb5c4d12de7.tar.bz2 | |
bpo-31671: re: Convert RegexFlag to int before compile (GH-3862)
sre_compile does bit test (e.g. `flags & SRE_FLAG_IGNORECASE`) in loop.
`IntFlag.__and__` and `IntFlag.__new__` made it slower.
So this commit convert it to normal int before passing flags to `sre_compile()`.
Diffstat (limited to 'Misc')
| -rw-r--r-- | Misc/NEWS.d/next/Library/2017-10-04-21-28-44.bpo-31671.E-zfc9.rst | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Misc/NEWS.d/next/Library/2017-10-04-21-28-44.bpo-31671.E-zfc9.rst b/Misc/NEWS.d/next/Library/2017-10-04-21-28-44.bpo-31671.E-zfc9.rst new file mode 100644 index 0000000..b84dedd --- /dev/null +++ b/Misc/NEWS.d/next/Library/2017-10-04-21-28-44.bpo-31671.E-zfc9.rst @@ -0,0 +1,2 @@ +Now ``re.compile()`` converts passed RegexFlag to normal int object before +compiling. bm_regex_compile benchmark shows 14% performance improvements. |