[issue34284] Nonsensical exception message when calling `__new__` on some sys objects

[ppperry]

ppperry <mapreader at olum.org> added the comment:

Your PR is not an improvement:
1. In this case, this will produce the error "tuple.__new__(sys.flags) is not safe". But I didn't call "tuple.__new__", I called sys.flags.__new__, and type(X).__new__(type(X)) should always be safe
2. The change in error message for namedtuples (A) isn't related and (B) isn't correct. `tuple.__new__(NamedTuple)` works, and produces a namedtuple object, so tuple.__new__ is what the error should point to.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue34284>
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