String Compression

 Question) Compress the given string

Note- character count should be follow by the character

Test case 1:

Input- AAAABBBCCCKLDC

Output - A4B3C3K1L1D1C1

Test case 2:

Input-  AAABBCCCCC

Output - A3B2C5

Code:

def string_cm(s):
    counter = 0 # to count the character initially set to 0
    test_list = s[0] #taking only first char to compare initially
    result =''
    s= s + " " # giving extra space at end just to take whole list as input
    for x in s:
        if x == test_list:
            counter+=1
            #print(counter)
        else:
            result = result + str(test_list) + str(counter)
            test_list = x #setting up new char for further check
            counter=1 #setting counter to 1 again

    return result


print(string_cm("AAABBCCCCC"))