Serhiy Storchaka <storchaka+cpyt...@gmail.com> added the comment:
> Less reliable how?
See issue39916.
> so it looks like scandir as a small overhead when accumulating all results
> and not using the extra info it returns.
Try with larger directories. The difference may be not so small.
$ python3 -m timeit -s 'from os import scandir' "list(scandir('/usr/include'))"
10000 loops, best of 3: 176 usec per loop
$ python3 -m timeit -s 'from os import listdir' "listdir('/usr/include')"
10000 loops, best of 3: 114 usec per loop
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue39907>
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