def make_urls_list(ids_list):
    """
    Appends each video id to the base url and insert them into a list
    :param list ids_list: youtube video id list
    :return list: list of urls
    """
    base_url = 'https://www.youtube.com/watch?v='
    urls_list = [base_url + _id
                 for _id in ids_list
                 if _id is not None]

    return urls_list