added external design pattern documentation links to structural patterns.

pypatterns/structural/adapter.py

@@ -1,6 +1,8 @@
 class Adapter(object):
     """
     Adapter class as part of the Adapter design pattern.
+
+    External Adapter Pattern Documentation: U{https://en.wikipedia.org/wiki/Adapter_pattern}
     """
     def __init__(self, adaptee, **adapted_methods):
         """
@@ -28,4 +30,3 @@ class Adapter(object):
         Get the adaptee's  __dict__
         """
         return self.__adaptee.__dict__
-

pypatterns/structural/bridge.py

@@ -4,6 +4,8 @@ from abc import ABCMeta
 class Bridge(object, metaclass=ABCMeta):
     """
     Base Bridge class as part of the Bridge design pattern.
+
+    External Bridge Pattern documentation: U{https://en.wikipedia.org/wiki/Bridge_pattern}
     """
     def __init__(self, implementor):
         """

pypatterns/structural/composite.py

@@ -1,6 +1,8 @@
 class Composite(object):
     """
     Composite class as part of the Composite pattern.
+
+    External Composite Pattern documentation: U{https://en.wikipedia.org/wiki/Composite_pattern}
     """
     def __init__(self, interface):
         """

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):
         """

pypatterns/structural/flyweight.py

@@ -1,6 +1,8 @@
 class FlyweightMeta(type):
     """
     Flyweight meta class as part of the Flyweight design pattern.
+
+    External Flyweight Pattern documentation: U{https://en.wikipedia.org/wiki/Flyweight_pattern}
     """
     def __new__(mcs, name, bases, attrs):
         """

pypatterns/structural/proxy.py

@@ -4,6 +4,8 @@ from abc import ABCMeta
 class Proxy(object, metaclass=ABCMeta):
     """
     Base Proxy class as part of the Proxy design pattern.
+
+    External Proxy Pattern documentation: U{https://en.wikipedia.org/wiki/Proxy_pattern}
     """
     def __init__(self, subject):
         """
@@ -26,12 +28,3 @@ class Proxy(object, metaclass=ABCMeta):
 
             elif not callable(getattr(self._subject, attr, None)) or not callable(getattr(self, attr, None)):
                 raise AttributeError('Subject and Proxy must follow same interface')
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