Why exception from os.path.exists()?
Serhiy Storchaka
storchaka at gmail.com
Sat Jun 2 01:04:19 EDT 2018
02.06.18 03:05, Chris Angelico пише:
> The permissions error is reported differently by stat, but then
> exists() just says "oh that's an OS error so we're going to say it
> doesn't exist". If you truly want the reliable form of os.path.exists,
> it would be this:
>
> try:
> os.stat(path)
> return True
> except FileNotFoundError:
> return False
>
> Anything that ISN'T "this file exists" or "this file doesn't exist"
> will be signalled with an exception.
And this is how pathlib.Path.exists() was implemented. But for
os.path.exists() we are limited by backward compatibility.
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