[issue33016] nt._getfinalpathname may use uninitialized memory
Alexey Izbyshev
report at bugs.python.org
Thu Mar 8 18:22:07 EST 2018
Alexey Izbyshev <izbyshev at ispras.ru> added the comment:
> unless users are not prepared to deal with it
ARE prepared
> What do you think about handling this failure by calling GetFullPathName instead (e.g. "C:\Temp\NUL" => "\\.\NUL")?
I think it would indeed be nice if pathlib handled such paths in its resolve(), especially since os.path.abspath() does handle them, and it looks weird that even resolve(strict=False) fails. That could be an enhancement, but note that it'll expose users to '\\.\'-prefixed paths which can't be returned from resolve() now. It is not necessary a problem because users should be prepared to handle UNC-like paths anyway.
> Currently pathlib's resolve method doesn't handle PermissionError like I think it should in non-strict mode. It only handles FileNotFoundError
That behavior doesn't look good, and it's inconsistent with POSIX resolve() which doesn't propagate any OSError in non-strict mode. I think this warrants an issue report.
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<https://bugs.python.org/issue33016>
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