When passing **kwargs to a callable, the expectation is that kwargs is a
dict with string keys. The interpreter enforces that it's a dict, but it
does NOT check the types of the keys. It's currently the job of the
called function to check that. In some cases, this check is not applied:
>>> from collections import OrderedDict
>>> OrderedDict(**{1:2})
OrderedDict([(1, 2)])
So this leads to the question: should the interpreter check the keys of
a **kwargs dict?
I don't have an answer myself, I'm just asking the question because it
comes up in https://github.com/python/cpython/pull/13930 and
https://github.com/python/cpython/pull/14589
Jeroen.
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