Thinking back to the 2.22 revision, I didn't like what I did there one
bit. For one, this class:
class C(object):
def __new__(myclass, ...): ...
would have no way to call the __new__ method of its base class, and
the workaround (to create an intermediate base class whose __new__ you
can call) is ugly.
So, I've come up with a better solution that restores object.__new__,
but still solves the original problem, which is that built-in and
extension types shouldn't inherit object.__new__. The solution is
simple: only "heap types" inherit tp_new. Simpler, less code,
perfect!
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