Python program to find the sum of Characters ascii values in String List

Last Updated : 11 Dec, 2020

Given the string list, the task is to write a Python program to compute the summation value of each character’s ASCII value.

Examples:

Input : test_list = [“geeksforgeeks”, “teaches”, “discipline”]
Output : [133, 61, 100]
Explanation : Positional character summed to get required values.

Input : test_list = [“geeksforgeeks”, “discipline”]
Output : [133, 100]
Explanation : Positional character summed to get required values.

Method 1 : Using ord() + loop

In this, we iterate each character in each string and keep on adding positional values to get its sum. The summed value is appended back to the result in a list.

Python3

# Python3 code to demonstrate working of  
# Characters Positions Summation in String List 
# Using ord() + loop 
  
# initializing list 
test_list = ["geeksforgeeks", 
             "teaches", "us", "discipline"] 
  
# printing original list 
print("The original list is : " + str(test_list)) 
  
res = [] 
for sub in test_list: 
    ascii_sum = 0
      
    # getting ascii value sum  
    for ele in sub : 
        ascii_sum += (ord(ele) - 96) 
          
    res.append(ascii_sum) 
  
# printing result  
print("Position Summation List : " + str(res))

Output:

The original list is : [‘geeksforgeeks’, ‘teaches’, ‘us’, ‘discipline’]
Position Summation List : [133, 61, 40, 100]

Method 2 : Using list comprehension + sum() + ord()

In this, we get summation using sum(), ord() is used to get the ASCII positional value, and list comprehension offers one-liner solution to this problem.

Python3

# Python3 code to demonstrate working of  
# Characters Positional Summation in String List 
# Using list comprehension + sum() + ord() 
  
# initializing list 
test_list = ["geeksforgeeks", "teaches",  
             "us", "discipline"] 
  
# printing original list 
print("The original list is : " + str(test_list)) 
  
# sum() gets summation, list comprehension 
# used to perform task in one line  
res = [sum([ord(ele) - 96 for ele in sub]) for sub in test_list] 
  
# printing result  
print("Positional Summation List : " + str(res)) 