> I'm not seeing what problem adding a new dunder and indirection of
>> __*item__ solves...
>>
> It kills at least 3 birds with one stone:
>
Actually there's a fourth bird.
4. Once you've decided on the signature of your key/index translation
dunder, you can ignore the signature in the rest of the item dunders:
class C:
def __subscript__(self, x, y):
return (y,), dict(x=x)
def __getitem__(self, *args, **kwargs):
print(args, kwargs)
>>> C()[100, y='foo']
(100,), {'y': 'foo'}
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