I don't see why you couldn't. I guess what they do depends if any of these have
defaults? Which I think they do not in this case, right?
If they were non vanilla dictionaries that had a default e.g.
class SomeDict(dict):
def __getitem__(self, item=None):
return super().__getitem__(item)
def __contains__(self, item=None):
return super().__contains__(item)
print(b[1]) would still print Undefined because print's first argument doesn't
have a default.
a in c would be False.
c[a] would return c[None], which would raise an error here because None isn't
in the mapping
Again, I am not pro this idea, just answering the questions you're asking as I
see them :)
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