Added Right Rotation code and proper comments

Array_Rotation/Array_Rotation.py

@@ -1,21 +1,41 @@
-//Program to rotate array Arr[] of size n by d Elements
-def leftRotation(arr,n):
+#Program to rotate array Arr[] of size n by d Elements
+#Rotate the arr to left by 1 
+def leftRotationby1(arr,n):
     temp = arr[0]
     for i in range(n-1):
         arr[i] = arr[i+1]
     arr[n-1] = temp
 
-def Rotate(arr,d,n):
+#Rotate the arr to right by 1 
+def rightRotationby1(arr,n):
+    temp = arr[n-1]
+    for i in range(n-1,0,-1):
+        arr[i] = arr[i-1]
+    arr[0] = temp
+
+#Rotate the arr to left by d i.e, leftRotationby1 runs d times
+def RotateLeftbyd(arr,d,n):
+    for i in range(d):
+        leftRotationby1(arr,n)
+    for i in range(n):
+        print(arr[i],end=" ")
+    print()
+
+#Rotate the arr to right by d i.e, rightRotationby1 runs d times
+def RotateRightbyd(arr,d,n):
     for i in range(d):
-        leftRotation(arr,n)
+        rightRotationby1(arr,n)
     for i in range(n):
         print(arr[i],end=" ")
+    print()
 
-arr = [1,2,3,4,5,6,7]
-Rotate(arr,2,7)
+#Driver Code
+arr = [1,2,3,4,5,6,7,8]
+RotateLeftbyd(arr,2,7)
+RotateRightbyd(arr,4,7)
 
-/*
-Input array: {1, 2, 3, 4, 5, 6, 7 }
-Expected Output
-3 4 5 6 7 1 2 
-*/
+'''
+Input: [1,2,3,4,5,6,7,8]
+output: 3 4 5 6 7 8 1 2
+        5 6 7 8 1 2 3 4
+'''