def user_list_gen(input_string, follower_name):
    """
    This function extract usernames from raw_html
    :param input_string: raw input html
    :param follower_name: follower_name
    :type input_string:str
    :type follower_name:str
    :return: user_list as list
    """
    try:
        user_list = []
        index = 0
        org_index = input_string.find('col-9 float-left pl-2')
        repo_data = input_string[org_index:]
        while index != -1:
            index = repo_data.find('alt="@', index + 6, len(input_string))
            length = repo_data[index + 6:].find('"')
            user_name = repo_data[index + 6:index + 6 + length]
            if user_name != follower_name:
                user_list.append(user_name)
        return user_list[:-1]
    except Exception as ex:
        pass
