Currently, this is valid:
a = {'a': 1, 'a': 2}
print a # {'a': 2}
I wonder if we shouldn't make this a run-time error instead. If people
agree, what should we do with
a = {'a': 1, 'a': 1}
??? In ABC, that's legal (and the first one is indeed an error; I took
a shortcut when I decided not to test for that in Python).
--
--Guido van Rossum (home page: http://www.python.org/~guido/)
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