oop in python

[Gerald99]

class base():
insCounter=0

def __init__(self):
self.__class__.insCounter +=1

def insPrint(self):
print self.__class__.insCounter



class tester(base):
insCounter=2

def __init__(self):
self.__class__.insCounter+= 1

def insPrint(self):

base.insPrint( tester() ) # ------->>> use v ,tester(), base()

v=tester()
v.insPrint()