python 用abc模块构建抽象基类Abstract Base Classes

　　见代码：

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2018/08/01 16:58
from abc import ABCMeta, abstractmethod


class SClass(object):
    __metaclass__ = ABCMeta

    @abstractmethod
    def my_print(self):
        pass


class C0Class(SClass):
    pass


class C1Class(SClass):

    def my_print(self):
        print 'call my_print in child instance.'


if __name__ == '__main__':
    try:
        c0 = C0Class()
        c0.my_print()
    except Exception, e:
        print e.message

    c1 = C1Class()
    c1.my_print()

输出：

Can't instantiate abstract class C0Class with abstract methods my_print
call my_print in child instance.