[Python-Dev] PEP 463: Exception-catching expressions

Greg Ewing greg.ewing at canterbury.ac.nz
Thu Mar 6 06:47:28 CET 2014


Steven D'Aprano wrote:
>     Return the value for key if key is in the dictionary, else default.
>     If default is not given, it defaults to None, so that this method 
>     never raises a KeyError.

I think that's supposed to mean that it won't raise
KeyError as a result of the key not being in the
dictionary. The actual behaviour is correct, IMO,
because it avoids masking bugs, so this could probably
be worded better.

-- 
Greg


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