核心语句：

type(self).__name__

实现：

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

# @File    : class_name.py
# @Time    : 2019/3/25 22:55
# @Author  : MaiXiaochai
# @Site    : https://github.com/MaiXiaochai


class ShowHello:
    def __init__(self, name):
        self.name = name

    def my_name(self):
        print("class_name: {}".format(type(self).__name__))


if __name__ == "__main__":
    hello = ShowHello('Python')
    hello.my_name()

结果：

# class_name: ShowHello

The end.