InstanceManager.py

#!/usr/bin/python
# -*- coding:utf-8 -*-

class InstanceManager:
  cnt=0

  def __init__(self):
    InstanceManager.cnt+=1

  def s_print_count():
    print('[staticmethod] instance count : '+str(InstanceManager.cnt))
  sprintcount=staticmethod(s_print_count)

  def c_print_cound(cls):
    print("[classmethod] instance count : "+str(cls.cnt))
  cprintcount=classmethod(c_print_cound)

a=InstanceManager()

InstanceManager.sprintcount()
#InstanceManager.s_print_count()


a.cprintcount()
#a.c_print_count()