In this chapter, you learned about:

• Operator overloading

• Overloading comparison operators using __eq__(), __ne__(), __gt__(), __ge__(), __lt__(), and __le__()

• NotImplemented

• __bool__()

• Overloading calculation using __add__(), __sub__(), __mul__(), __truediv__(), __floordiv__(), __mod__(), __pow__(), __lshift__(), __rshift__(), __and__(), __or__(), and __xor__()

• Righthand versions of overloading calculation operators

• Shorthand versions of overloading calculation operators

• Overloading unary operators __neg__(), __pos__(), __invert__(), __abs__(), __int__(), __float__(), __round__(), and __bytes__()

• Overloading operators for sequence classes __len__(), __getitem__(), __setitem__(), __delitem__(), __missing__(), and __contains__()