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

Ben Hoyt benhoyt at gmail.com
Wed Jul 9 21:59:39 CEST 2014

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. I'm okay with dropping 3 and 4, and making the return from onerror being simply True to yield the entry, and False/None to skip it. That should make implementation much easier, and documentation not too strenuous either.

That's definitely better in terms of complexity.

Other python-devers, please chime in with your thoughts or votes.

-Ben

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