How to make a function return a list of indices of the characters in the second string that appears in the first string?

Question

def get_indices_from_the_second_string(string1, string2):
    \'\'\'(str, str) -> list of int
    >>> get_indices_from_the_second_string(\'AGTACACGTTAC\', \'         


        

Answer 1

Oh, I see what you're doing.

def get_indices_from_the_second_string(string1, string2):
    acc = []
    string1_index = 0
    for char in string2:
        while string1[string1_index] != char:
            string1_index += 1
            if string1_index >= len(string1):
                return acc
        acc.append(string1_index)
        string1_index += 1
        if string1_index >= len(string1):
            return acc
    return acc