added external design pattern documentation links to structural patterns.

pypatterns/structural/decorator.py

@@ -5,6 +5,8 @@ from abc import ABCMeta, abstractmethod
 class Decorator(object, metaclass=ABCMeta):
     """
     Base Decorator class that all decorator classes inherit from.
+
+    External Decorator Pattern documentation: U{https://en.wikipedia.org/wiki/Decorator_pattern}
     """
     def __get__(self, instance, owner):
         """
@@ -23,6 +25,8 @@ class Decorator(object, metaclass=ABCMeta):
 class DecoratorSimple(Decorator, metaclass=ABCMeta):
     """
     A Base Decorator class for decorators with no arguments.
+
+    External Decorator Pattern documentation: U{https://en.wikipedia.org/wiki/Decorator_pattern}
     """
     def __init__(self, func):
         """
@@ -36,6 +40,8 @@ class DecoratorSimple(Decorator, metaclass=ABCMeta):
 class DecoratorComplex(Decorator, metaclass=ABCMeta):
     """
     A Base Decorator class for decorators with arguments.
+
+    External Decorator Pattern documentation: U{https://en.wikipedia.org/wiki/Decorator_pattern}
     """
     @abstractmethod
     def __init__(self, *args, **kwargs):
@@ -63,6 +69,8 @@ class DecoratorComplex(Decorator, metaclass=ABCMeta):
 class CallWrapper(DecoratorSimple):
     """
     A Decorator for wrapping DecoratorComplex __call__ methods.
+
+    External Decorator Pattern documentation: U{https://en.wikipedia.org/wiki/Decorator_pattern}
     """
     def __call__(self, instance, func):
         """