# phpman > pydoc > atexit

Help on built-in module atexit:

## NAME
    atexit

## DESCRIPTION
    allow programmer to define multiple exit functions to be executed
    upon normal program termination.

    Two public functions, register and unregister, are defined.

## FUNCTIONS
### register
        register(func, *args, **kwargs) -> func

        Register a function to be executed upon normal program termination

            func - function to be called at exit
            args - optional arguments to pass to func
            kwargs - optional keyword arguments to pass to func

            func is returned to facilitate usage as a decorator.

### unregister
        unregister(func) -> None

        Unregister an exit function which was previously registered using
        atexit.register

            func - function to be unregistered

## FILE
    (built-in)