Program for Reversal algorithm for array rotation

def rverseArray(arr, start, end):

while (start < end):

temp = arr[start]

arr[start] = arr[end]

arr[end] = temp

start += 1

end = end-1

def leftRotate(arr, d):

n = len(arr)

rverseArray(arr, 0, d-1)

rverseArray(arr, d, n-1)

rverseArray(arr, 0, n-1)

def printArray(arr):

for i in range(0, len(arr)):

print (arr[i])

arr = [1, 2, 3, 4, 5, 6, 7]

leftRotate(arr, 2)

printArray(arr)