Fix type hints and enable mypy#486
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alecthomas merged 2 commits intoalecthomas:masterfrom Nov 12, 2023
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Nov 11, 2023
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Type hints are not very useful if they are not checked.
Invalid.pathandInvalid.error_messageare no longer writable (properties). Because they are propertis in subclassMultipleInvalidand subclass can't override writable as read only.Schemable.Extrais not a type butCallableandCallableis already there. ForNoneTypejustNoneshould be used.isinstanceinstead of direct comparison.