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| author | Brian Curtin <brian@python.org> | 2011-06-08 23:17:18 (GMT) |
|---|---|---|
| committer | Brian Curtin <brian@python.org> | 2011-06-08 23:17:18 (GMT) |
| commit | 9c669ccc77c85eac245d460bab510a38b20d9a08 (patch) | |
| tree | 067c0f49c9e1fd369765a12003b3f8bc502c7175 /Misc | |
| parent | 41c1910bb3229874a02c19ecd9189715b3ce501b (diff) | |
| download | cpython-9c669ccc77c85eac245d460bab510a38b20d9a08.zip cpython-9c669ccc77c85eac245d460bab510a38b20d9a08.tar.gz cpython-9c669ccc77c85eac245d460bab510a38b20d9a08.tar.bz2 | |
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')
| -rw-r--r-- | Misc/NEWS | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -22,6 +22,9 @@ Core and Builtins Library ------- +- Issue #11583: Speed up os.path.isdir on Windows by using GetFileAttributes + instead of os.stat. + - Named tuples now work correctly with vars(). - Issue #12085: Fix an attribute error in subprocess.Popen destructor if the |