ArrayRotation.py

# #Function to left rotate arr[] of size n by d*/ 
# def leftRotate(arr, d, n): 
#     for i in range(d): 
#         leftRotatebyOne(arr, n) 
  
# #Function to left Rotate arr[] of size n by 1*/  
# def leftRotatebyOne(arr, n): 
#     temp = arr[0] 
#     for i in range(n-1): 
#         arr[i] = arr[i+1] 
#     arr[n-1] = temp 
          
  
# # utility function to print an array */ 
# def printArray(arr,size): 
#     for i in range(size): 
#         print ("%d"% arr[i],end=" ") 
  
    
    
# Function to left rotate arr[] by d
# no need for size of array
def leftRotate(arr, d):
    for i in range(d):
        arr.append(arr.pop(0))        # more short and pythonic way of rotating

# utility function for printing an array        
def printArray(arr):
    print(*arr)
    
   
# Driver program to test above functions */ 
arr = [1, 2, 3, 4, 5, 6, 7] 
leftRotate(arr, 2, 7) 
printArray(arr, 7)