[issue39907] `pathlib.Path.iterdir()` wastes memory by using `os.listdir()` rather than `os.scandir()`

[Barney Gale]

Barney Gale <barney.g...@gmail.com> added the comment:

Less reliable how? Doesn't appear any slower:

barney.gale@heilbron:~$ python3 -m timeit -s "import os; 
os.listdir('/usr/local')"
100000000 loops, best of 3: 0.0108 usec per loop
barney.gale@heilbron:~$ python3 -m timeit -s "import os; 
list(os.scandir('/usr/local'))"
100000000 loops, best of 3: 0.00919 usec per loop

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