Module ImportFrom alias alias alias ImportFrom alias ImportFrom alias alias Expr Str ClassDef bases AttributeLoad NameLoad attr body Assign NameStore Str FunctionDef arguments args NameParam NameParam NameParam defaults body Expr Call AttributeLoad NameLoad attr Num Call NameLoad ListLoad Call NameLoad Str Return NameLoad decorator_list decorator_list
N/A lib2to3 fixer_base pytree patcomp lib2to3.pgen2 token lib2to3.fixer_util ArgList Name N/A 
Fixes:
    class Name: ...
into:
    class Name(object): ...
 FixClass N/A N/A fixer_base BaseFix N/A N/A PATTERN 
        classdef< 'class' any ':' any* >
     transform N/A N/A self node results N/A N/A N/A N/A N/A node insert_child 2 N/A ArgList N/A N/A Name object N/A node N/A N/A