A class definition defines a class object (see section 
):
classdef: "class" classname [inheritance] ":" suite
inheritance: "(" [condition_list] ")"
classname: identifier
A class definition is an executable statement. It first evaluates the
inheritance list, if present. Each item in the inheritance list
should evaluate to a class object. The class's suite is then executed
in a new execution frame (see section ), using a newly
created local name space and the original global name space.
(Usually, the suite contains only function definitions.) When the
class's suite finishes execution, its execution frame is discarded but
its local name space is saved. A class object is then created using
the inheritance list for the base classes and the saved local name
space for the attribute dictionary. The class name is bound to this
class object in the original local name space.