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| author | Brian Curtin <brian@python.org> | 2011-06-08 18:43:57 -0500 |
|---|---|---|
| committer | Brian Curtin <brian@python.org> | 2011-06-08 18:43:57 -0500 |
| commit | 9a82eaade3cbfba9895b6121daf8ddb65b5aaa4d (patch) | |
| tree | 8257efd366978aee3774e35858f00e62b6b1a089 /Misc/NEWS | |
| parent | 4dd453c6aab315954f19bf0b2f1541c2b37d8e34 (diff) | |
| parent | 9c669ccc77c85eac245d460bab510a38b20d9a08 (diff) | |
| download | cpython-git-9a82eaade3cbfba9895b6121daf8ddb65b5aaa4d.tar.gz | |
Fix #11583. Changed os.path.isdir to use GetFileAttributes instead of os.stat.
By changing to the Windows GetFileAttributes API in nt._isdir we can figure
out if the path is a directory without opening the file via os.stat. This has
the minor benefit of speeding up os.path.isdir by at least 2x for regular
files and 10-15x improvements were seen on symbolic links (which opened the
file multiple times during os.stat). Since os.path.isdir is used in
several places on interpreter startup, we get a minor speedup in startup time.
Diffstat (limited to 'Misc/NEWS')
| -rw-r--r-- | Misc/NEWS | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -187,6 +187,9 @@ Core and Builtins Library ------- +- Issue #11583: Speed up os.path.isdir on Windows by using GetFileAttributes + instead of os.stat. + - Issue #12021: Make mmap's read() method argument optional. Patch by Petri Lehtinen. |