Create a compress function in Python?

Question

I need to create a function called compress that compresses a string by replacing any repeated letters with a letter and number. My function should return the shortened vers

Answer 1

from collections import Counter
def string_compression(string):
    counter = Counter(string)
    result = ''
    for k, v in counter.items():
        result = result + k + str(v)
    print(result)