C.__name__ String name of class C
C.__doc__ Documentation string for class C
C.__bases__ Tuple of class C's parent classes
C.__dict__ Attributes of C
C.__module__ Module where C is defined (new in 1.5)
C.__class__ Class of which C is an instance (new-style classes only)
class MyClass: pass
print MyClass.__name__
print MyClass.__doc__
print MyClass.__bases__
print MyClass.__dict__
print MyClass.__module__