Michael Amrhein <mich...@adrhinum.de> added the comment:
The background is an implementation of __pow__ for a fixed-point decimal number:
SupportsIntOrFloat = Union[SupportsInt, SupportsFloat]
def __pow__(self, other: SupportsIntOrFloat, mod: Any = None) -> Complex:
if isinstance(other, SupportsInt):
exp = int(other)
if exp == other:
... handle integer exponent
if isinstance(other, SupportsFloat):
# fractional exponent => fallback to float
return float(self) ** float(other)
return NotImplemented
I came across SupportsInt and SupportsFloat, because they are used in typeshed
as param types for int and float.
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue44547>
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