[issue20308] inspect.Signature doesn't support user classes without __init__ or __new__

[Larry Hastings]

Larry Hastings added the comment:

Special cases aren't special enough to break the rules.  If the signature of a metaclass is "(object_or_name, [bases, dict])", then we must not special-case it to pretend that "(object)" works.  I agree it's a bad idea to actually *do* that, but there are best-practice principles at stake here.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20308>
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