The class descriptor objects used as values in the dictionary returned
by readmodule() and readmodule_ex()
provide the following data members:
The name of the module defining the class described by the class
The name of the class.
A list of class descriptors which describe the immediate base
classes of the class being described. Classes which are named as
superclasses but which are not discoverable by
readmodule() are listed as a string with the class name
instead of class descriptors.
A dictionary mapping method names to line numbers.
Name of the file containing the class statement defining the class.
The line number of the class statement within the file named by