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`isinsntace` in dataclass #58

Open tarohi24 opened 3 years ago

tarohi24 commented 3 years ago 
from dataclasses import dataclass
@dataclass
class A:
    pass
@dataclass
class B(A):
    pass
b = B()
isinstance(b, A)
Out[6]: True
isinstance(b, B)
Out[7]: True