A list of bytecode instructions can be found in the documentation for

:ref:`the dis module<bytecodes>`.

callable

A callable is an object that can be called, possibly with a set

of arguments (see:term:`argument`), with the following syntax::

A:term:`function`, and by extension a:term:`method`, is a callable.

An instance of a class that implements the:meth:`~object.__call__`

method is also a callable.

callback

A subroutine function which is passed as an argument to be executed at

some point in the future.