Difference in Python class declaration [duplicate]

Question

In python class declaration I can declare a class by few ways. What is a difference between following samples?

class MyClass:
 def __init__(self)
     pass


class MyClass(object):
   def __init__(self)
     pass

Answer 1

The second declaration creates a new-style class. A new-style class is derived from a built-in type, in this case an object. This was introduced in python 2.2 in an effort to unify classes and types. For backward compatibility old-style classes are still the default

Additional read: http://docs.python.org/release/2.2.3/whatsnew/sect-rellinks.html

Answer 2

The second way creates a "new-style" class. Documentation is admittedly a bit lacking, as mentioned in a couple places on the python website Python Guide 3.3, and here. There's also an essay describing their design by Python's creator (Guido van Rossum), but it's not strictly documentation.