[issue25412] __floordiv__ in module fraction fails with TypeError instead of returning NotImplemented

[Sergey Shashkov]

Sergey Shashkov added the comment:

...
        def forward(a, b):
            if isinstance(b, (int, Fraction)):
                return monomorphic_operator(a, b)
            elif isinstance(b, float):
                return fallback_operator(float(a), b)
            elif isinstance(b, complex):
                return fallback_operator(complex(a), b)
            else:
                return NotImplemented
        forward.__name__ = '__' + fallback_operator.__name__ + '__'
        forward.__doc__ = monomorphic_operator.__doc__

        def reverse(b, a):
            if isinstance(a, numbers.Rational):
                # Includes ints.
                return monomorphic_operator(a, b)
            elif isinstance(a, numbers.Real):
                return fallback_operator(float(a), float(b))
            elif isinstance(a, numbers.Complex):
                return fallback_operator(complex(a), complex(b))
            else:
                return NotImplemented
...
so division is possible only with int, Fraction, float, complex, numbers.Rational, numbers.Real, numbers.Complex.
For all of them "isinstance(b, numbers.Complex)" is true

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue25412>
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