print() is a function just like every other function (#1101)

* print() is a function just like every other function

data_structures/queue/double_ended_queue.py

@@ -1,40 +1,40 @@
 from __future__ import print_function
-# Python code to demonstrate working of 
+# Python code to demonstrate working of
 # extend(), extendleft(), rotate(), reverse()
- 
+
 # importing "collections" for deque operations
 import collections
- 
+
 # initializing deque
 de = collections.deque([1, 2, 3,])
- 
-# using extend() to add numbers to right end 
+
+# using extend() to add numbers to right end
 # adds 4,5,6 to right end
 de.extend([4,5,6])
- 
+
 # printing modified deque
-print ("The deque after extending deque at end is : ")
-print (de)
- 
-# using extendleft() to add numbers to left end 
+print("The deque after extending deque at end is : ")
+print(de)
+
+# using extendleft() to add numbers to left end
 # adds 7,8,9 to right end
 de.extendleft([7,8,9])
- 
+
 # printing modified deque
-print ("The deque after extending deque at beginning is : ")
-print (de)
- 
+print("The deque after extending deque at beginning is : ")
+print(de)
+
 # using rotate() to rotate the deque
 # rotates by 3 to left
 de.rotate(-3)
- 
+
 # printing modified deque
-print ("The deque after rotating deque is : ")
-print (de)
- 
+print("The deque after rotating deque is : ")
+print(de)
+
 # using reverse() to reverse the deque
 de.reverse()
- 
+
 # printing modified deque
-print ("The deque after reversing deque is : ")
-print (de)
+print("The deque after reversing deque is : ")
+print(de)