emoji_flag_country_code.py

OFFSET = 127462 - ord('A')

def unicode_flag_to_country_code(code_points: list) -> str:
    """Converts unicode emoji flag to country code string

    Args:
        code_points: A list of unicode code points representing a 
            country flag

    Returns:
        The two-letter country code
    """
    return ''.join(chr(int(char, 16) - OFFSET) for char in (code_points))

def country_code_to_unicode_flag(country_code: str) -> list:
    """Converts a country code string to unicode code points

    Args:
        country_code: A two letter IANA BCP 47 region code

    Returns:
        A list of unicode code points for the country flag
    """
    return [hex(ord(char) + OFFSET) for char in (country_code)]