python any? in

Question

"""python3.9"""
print(any([4]) in [1, 2, 3]) # True!
print(any([1, 2, 3]) in [4, 5]) # False

Answer 1

bool是int的子类，int(True)=1, int(False)=0

any([4]), any([1,2,3])都是True,使用in去判断True在不在list中时，由于list中是int，
所以等价于在判断
print(1 in [1, 2, 3])
print(1 in [4, 5])
所以一个True一个False