Python Atexit Module
Exit handlers — register, unregister. This category documents 3 Python atexit module entries, and each page gives you the full syntax, the parameter list, the return value, and a runnable example. The entries include: atexit.register(), atexit.unregister(), atexit._clear(). atexit.register() registers a function to be called at program exit (like cleanup). atexit.unregister() removes a function from the list of exit handlers. atexit._clear() clears all registered exit handlers. Atexit Module belongs to the Dev Tools group alongside Inspect Module, Pdb Module, Traceback Module, Timeit Module. You can also search across every category from the search page, browse the complete A–Z index, or try any example in the Python playground. Python Reference documents 978+ functions, methods, and modules across 114 categories of the standard library, and every entry in this Atexit Module category follows the same format — syntax first, then what it does, the parameters it accepts, what it returns, and a working code example — so once you have read one page you can read them all.