implemented adapter design pattern.

pypatterns/structural/adapter.py

@@ -0,0 +1,31 @@
+class Adapter(object):
+    """
+    Adapter class as part of the Adapter design pattern.
+    """
+    def __init__(self, adaptee, **adapted_methods):
+        """
+        Initialize a new adapter instance.
+
+        @param adaptee: The object to adapt to a new interface.
+        @type adaptee: Object
+        @param adapted_methods: A dictionary of methods to adapt.
+        @type adapted_methods: dict
+        """
+        self.__adaptee = adaptee
+        self.__dict__.update({k: v for k, v in adapted_methods.items() if callable(v) and
+                              getattr(self.__adaptee, v.__name__, None)})
+
+    def __getattr__(self, attr):
+        """
+        All non-adapted calls are passed to the adaptee.
+
+        @param attr: The attribute to get from the adaptee.
+        """
+        return getattr(self.__adaptee, attr)
+
+    def original_dict(self):
+        """
+        Get the adaptee's  __dict__
+        """
+        return self.__adaptee.__dict__
+