Python 3 bool is actually int

>>> from sys import getsizeof as f
>>> f(1)
28
>>> f(True)
28
>>> f(0)
24
>>> f(False)
24
>>> 0 == False
True
>>> 1 == True
True
>>> True + 1
2
>>> bin(True)
'0b1'
>>> bin(False)
'0b0'
>>> isinstance(False, bool)
True
>>> isinstance(False, int)
True