Added a queue

prakhar1989 · prakhar1989 · commit 22727af53061 · 2015-08-10T16:41:46.000+05:30
diff --git a/lists/queue.py b/lists/queue.py
@@ -0,0 +1,19 @@
+class Queue(object):
+    def __init__(self):
+        self.items = []
+
+    def __str__(self):
+        return ("Queue of size: %d" % len(self.items))
+
+    def isEmpty(self):
+        return len(self.items) == 0
+
+    def enqueue(self, item):
+        self.items.insert(0, item)
+
+    def dequeue(self):
+        return self.items.pop()
+
+    def size(self):
+        return len(self.items)
+
