Serhiy Storchaka added the comment:
Proposed patch adds support for file descriptors in os.scandir() and implements
os.fwalk() with os.scandir().
The effect of using os.scandir() in os.fwalk():
$ ./python -m timeit -n1 -r5 -s 'import os' -- 'list(os.walk("/usr/lib"))'
1 loop, best of 5: 934 msec per loop
$ ./python -m timeit -n1 -r5 -s 'import os' -- 'list(os.walk("/usr/lib",
topdown=False))'
1 loop, best of 5: 718 msec per loop
$ ./python -m timeit -n1 -r5 -s 'import os' -- 'list(os.fwalk("/usr/lib"))'
Unpatched: 1 loops, best of 5: 1.78 sec per loop
Patched: 1 loop, best of 5: 934 msec per loop
$ ./python -m timeit -n1 -r5 -s 'import os' -- 'list(os.fwalk("/usr/lib",
topdown=False))'
Unpatched: 1 loops, best of 5: 1.76 sec per loop
Patched: 1 loop, best of 5: 947 msec per loop
----------
keywords: +patch
stage: -> patch review
versions: +Python 3.7 -Python 3.6
Added file: http://bugs.python.org/file45377/os-scandir-fd.patch
_______________________________________
Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue25996>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
