>>> from classVar import *

>>> c1=C()

>>> c1
<classVar.C instance at 0x810e894>

>>> c2=C()

>>> c2
<classVar.C instance at 0x810e98c>

>>> c1.getInstances()
2

>>> c2.getInstances()
2

>>> c1.setValue(10)
>>> c1.getValue()
10

>>> print c1 
Instance of class C, value = 10

>>> c2.setValue(20)
>>> c2.getValue()
20