Max Staff added the comment:
Yes I know about the errno. There would be two ways to resolve this:
One way would be by introducing a new exception class which would be nice
because it's almost impossible to reliably check the allowed filename length
(except for trial and error) and I have quite a few functions where I would
want the error to propagate further as long as it's not an ENAMETOOLONG.
The other way would be by introducing a new syntax feature ("except OSError as
e if e.errno == errno.ENAMETOOLONG:") but I don't think that that approach is
reasonable.
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<http://bugs.python.org/issue30641>
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