Python program to print the sum of all elements in an array

#Initialize array     
arr = [1, 2, 3, 4, 5];     
sum = 0;    
     
#Loop through the array to calculate sum of elements    
for i in range(0, len(arr)):    
   sum = sum + arr[i];    
     
print("Sum of all the elements of an array: " + str(sum));    

Output:

Sum of all the elements of an array: 15