> > [Bar Harel] > > As for get(). Current implementation of UserDict returns the default > value > > for get() if __missing__() raises KeyError. Which sounds reasonable to > me. > > After all, you would logically expect __missing__ to be called for get() > > as you tried to get a non-existing value. > > > [Ethan Furman] > I disagree. My understanding of the purpose behind get() is to get a value > or return the default specified in the get() call, not to create a new key > (which the default __missing__ does). >
There is no default __missing__. That's what the __missing__ at defaultdict does. Like I said before: The fact __missing__ is not called for missing values is a bit funny in my opinion, but it doesn't actually matter cause we can't do anything about it without breaking lots of stuff (e.g. making defaultdict.get worthless).
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