import gzip


def read_newline_separated_gz_file_into_list(filename):
    """
    Reads a gzipped file into a list of strings.
    
    :param file_name: str
        filename to read    
    :return: list of str
        newline characters are removed.
    """
    
    ret_list = []
    with gzip.open(filename, "rt") as f:
        for line in f:
            ret_list.append(line[:-1])
    return ret_list