implemented iterator design pattern

pypatterns/behavioral/iterator.py

@@ -0,0 +1,33 @@
+from abc import ABCMeta, abstractmethod
+
+
+class Iterator(object):
+    """
+    An Iterator class for the Iterator design pattern.
+    """
+    def __init__(self, iterable):
+        """
+        Initialize a new Iterator instance.
+
+        @param iterable: An Iterable object to iterate over.
+        @type iterable: Iterable
+        """
+        self.iterable = iterable
+
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        return self.iterable.__next__()
+
+
+class Iterable(object, metaclass=ABCMeta):
+    """
+    An abstract class representing an Iterable object as part of the Iterator design pattern.
+    """
+    @abstractmethod
+    def __next__(self):
+        """
+        All Iterable's must implement a __next__ method which eventually raises StopIteration.
+        """
+        pass