ilusha/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython synced 2026-09-26 16:21:04 +03:00
Code Issues Projects Releases Packages Wiki Activity Actions

gh-117394: Speed up os.path.ismount() on Posix (GH-117447)

Browse source 
It is now 2-3 times faster if the user has permissions.
This commit is contained in:
Serhiy Storchaka 2024-04-17 12:58:19 +03:00 • committed by GitHub
parent 51132da0c4
commit 4e502a4997
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
2 changed files with 7 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

9
Lib/posixpath.py
View file

@ -206,11 +206,14 @@ def ismount(path):
parent = join(path, b'..') parent = join(path, b'..')
else: else:
parent = join(path, '..') parent = join(path, '..')
parent = realpath(parent)
try: try:
s2 = os.lstat(parent) s2 = os.lstat(parent)
except (OSError, ValueError): except OSError:
return False parent = realpath(parent)
try:
s2 = os.lstat(parent)
except OSError:
return False
# path/.. on a different device as path or the same i-node as path # path/.. on a different device as path or the same i-node as path
return s1.st_dev != s2.st_dev or s1.st_ino == s2.st_ino return s1.st_dev != s2.st_dev or s1.st_ino == s2.st_ino

1
Misc/NEWS.d/next/Library/2024-04-02-11-17-44.gh-issue-117394.2aoSlb.rst Normal file
View file

@ -0,0 +1 @@
:func:`os.path.ismount` is now 2-3 times faster if the user has permissions.