Source Code for Module pypat.creational.prototype

 1  from copy import deepcopy 
 2  from types import MethodType 
 3   
 4   
 5 -class Prototype(object): 
 6      """ 
 7      Prototype design pattern abstract class. 
 8   
 9      - External Usage documentation: U{https://github.com/tylerlaberge/PyPatterns/wiki/Creational-Pattern-Usage} 
10      - External Prototype Pattern documentation: U{https://en.wikipedia.org/wiki/Prototype_pattern} 
11      """ 
12 -    def prototype(self, **attributes): 
13          """ 
14          Copy the prototype this object and optionally update attributes. 
15   
16          @param attributes: Keyword arguments of any attributes you wish to update. 
17          @return: A copy of this object with the updated attributes. 
18          """ 
19          obj = deepcopy(self) 
20          for attribute in attributes: 
21              if callable(attributes[attribute]): 
22                  setattr(obj, attribute, MethodType(attributes[attribute], obj)) 
23              else: 
24                  setattr(obj, attribute, attributes[attribute]) 
25   
26          return obj 
27