[Python-Dev] Raising OSError concrete classes from errno code (original) (raw)
Benjamin Peterson benjamin at python.org
Tue Dec 25 23:03:22 CET 2012
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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 PyErrSetFromErrno and PyErrSetFromErrnoWithFilename[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 exceptionfromerrno(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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