Update queue.py

Joe Green · web-flow · commit 576d79606901 · 2016-10-16T12:25:16.000+05:30
Renamed _queue_list to _queue as 
1. It is more meaningful in this context
2. Deque object is not a list object
diff --git a/algorithms/data_structures/queue.py b/algorithms/data_structures/queue.py
@@ -17,15 +17,15 @@
 class Queue:
 
     def __init__(self):
-        self._queue_list = deque([])
+        self._queue = deque([])
 
     def add(self, value):
         """
         Add element as the last item in the Queue.
 
         Worst Case Complexity:  O(1)
         """
-        self._queue_list.append(value)
+        self._queue.append(value)
 
     def remove(self):
         """
@@ -34,20 +34,20 @@ def remove(self):
         Worst Case Complexity:  O(1)
         """
 
-        return self._queue_list.popleft()
+        return self._queue.popleft()
 
     def is_empty(self):
         """
         Returns a boolean indicating if the Queue is empty.
 
         Worst Case Complexity:  O(1)
         """
-        return not len(self._queue_list)
+        return not len(self._queue)
 
     def size(self):
         """
         Return size of the Queue.
 
         Worst Case Complexity:  O(1)
         """
-        return len(self._queue_list)
+        return len(self._queue)
