Python Built-ins Operators

Python has the following built-in operators available at the global scope.

Contents

Binary

Operator	Function	Example
`-`	negation	`-1 == 0 - 1`

The expansion operator (*) only functions as the expansion operator in contexts where it unambiguously is not the multiplication operator.

For example, in function definitions...

For another example, in the context of type annotations, the expansion operator can be used with typing.TypeVarTuple to define generic types.

The union operator (|) only functions as the union operator in contexts where it unambiguously is not the bitwise or operator.

For example, in set operations...

For another example, in the context of type annotations, the union operator can be used in place of typing.Union.

def int_or_str(arg: int | str) -> None:
    ...

See here for more information.