chaining_method.py

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

class Person(object):

 def __init__(self, name, action):
 self.name = name
 self.action = action

 def do_action(self):
 print(self.name, self.action.name, end=' ')
 return self.action

class Action(object):

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

 def amount(self, val):
 print(val, end=' ')
 return self

 def stop(self):
 print('then stop')

if __name__ == '__main__':

 move = Action('move')
 person = Person('Jack', move)
 person.do_action().amount('5m').stop()

### OUTPUT ###
# Jack move 5m then stop