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[Python-Dev] Raising OSError concrete classes from errno code

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2012/12/25 Andrew Svetlov <andrew.svetlov at gmail.com>:
> Currently we have exception tree of classes inherited from OSError
> When we use C API we can call PyErr_SetFromErrno and
> PyErr_SetFromErrnoWithFilename[Object] functions.
> This ones raise concrete exception class (FileNotFoundError for
> example) looking on implicit errno value.
> I cannot see the way to do it from python.
>
> Maybe adding builtin like exception_from_errno(errno, filename=None)
> make some value?
> Function returns exception instance, concrete class depends of errno value

I think a static method on OSError like .from_errno would be good.


-- 
Regards,
Benjamin

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