gistfile1.py

[utdemir@utdemir_asus ~]$ python3
Python 3.2.1 (default, Jul 11 2011, 12:37:47) 
[GCC 4.6.1] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> class A():
...     pass
... 
>>> class B(object):
...     pass
... 
>>> A
<class '__main__.A'>
>>> B
<class '__main__.B'>
>>> A()
<__main__.A object at 0x7f47156d7350>
>>> B()
<__main__.B object at 0x7f47156d7390>
>>> 
[utdemir@utdemir_asus ~]$ python2
Python 2.7.2 (default, Jun 29 2011, 11:10:00) 
[GCC 4.6.1] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> class A():
...     pass
... 
>>> class B(object):
...     pass
... 
>>> A
<class __main__.A at 0x7f4a581db120>
>>> B
<class '__main__.B'>
>>> A()
<__main__.A instance at 0x7f4a581eefc8>
>>> B()
<__main__.B object at 0x7f4a581f0c90>