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@lupinus

Python_is演算子

Last updated at Posted at 2021-11-16

is演算子

同じオブジェクトかどうか判定する。
Noneなどの判別によく使用する.

a = 1
b = 1
c = 0
d = a
print(id(a), id(b), id(c), id(d))
print(a is b)
print(a is c)
print(a is not c)

94279174345344 94279174345344 94279174345312 94279174345344
True
False
True

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