[Python-Dev] Updates to PEP 471, the os.scandir() proposal (original) (raw)

Nikolaus Rath Nikolaus at rath.org
Thu Jul 10 02:25:54 CEST 2014

Ben Hoyt <benhoyt at gmail.com> writes:

So here's the ways in which option #2 is now more complicated than option #1:

1) it has an additional "info" argument, the values of which have to be documented ('os', 'type', 'lstat', and what each one means) 2) it has an additional "onerror" argument, the signature of which and fairly complicated return value is non-obvious and has to be documented 3) it requires user modification of the DirEntry object, which needs documentation, and is potentially hard to implement 4) because the DirEntry object now allows modification, you need a statresult() helper function to help you build your own stat values I'm afraid points 3 and 4 here add way too much complexity.

Points 3 and 4 are not required to go with option #2, option #2 merely allows to implement points 3 and 4 at some point in the future if it turns out to be desirable.

Best, -Nikolaus

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