如何输入(在 Python 中,例如 MyPy)一个需要两个参数的函数 - 枚举及其值/成员之一?
from enum import Enum
from typing import TypeVar, Type
class MyEnumA(Enum):
A = 1
B = 2
class MyEnumB(Enum):
A = 1
B = 2
TE = TypeVar('TE', bound=Enum)
def myfunction(member: TE, e: Type[TE]) -> None:
pass
myfunction(MyEnumA.A, MyEnumA) # all right
myfunction(MyEnumA.A, MyEnumB) # I expect mypy-error here but it passed
print(type(MyEnumA.A)) # says: <enum 'MyEnumA'>
print(type(MyEnumB.A)) # says: <enum 'MyEnumB'>
print(f'{isinstance(MyEnumA.A, MyEnumA)=}') # says: isinstance(MyEnumA.A, MyEnumA)=True
print(f'{isinstance(MyEnumA.A, MyEnumB)=}') # says: isinstance(MyEnumA.A, MyEnumB)=False …Run Code Online (Sandbox Code Playgroud)