2.1.8 Special Attributes 
The implementation adds a few special read-only attributes to several
object types, where they are relevant:
- __dict__
 - 
A dictionary of some sort used to store an
object's (writable) attributes.
 
- __methods__
 - 
List of the methods of many built-in object types,
e.g., 
[].__methods__ yields
['append', 'count', 'index', 'insert', 'pop', 'remove',
'reverse', 'sort'].
 
- __members__
 - 
Similar to __methods__, but lists data attributes.
 
- __class__
 - 
The class to which a class instance belongs.
 
- __bases__
 - 
The tuple of base classes of a class object.
 
See About this document... for information on suggesting changes.