This is just a side-effect of bool being a subclass of int and True and False having the values 1 and 0, respectively. It might seem weird or surprising, but i

This is just a side-effect of bool being a subclass of int and True and False having the values 1 and 0, respectively. It might seem weird or surprising, but it's not a problem with Python's type system. >>> issubclass(bool, int) True >>> isinstance(True, int) True >>> int(True) 1 >>> int(False) 0 >>> True == 1 True >>> False == 0 True