Manage language information based on ISO 639-3 codes.
This class provides a lookup table that maps ISO 639-3 codes to their corresponding ISO 639-1 codes and human-readable language names.
>>> iso = ISO639()
>>> language_info = iso.get_language_info('eng')
>>> language_info.iso639_1_code
> 'en'
>>> language_info.language_name
> 'English'
>>> iso.get_language_info('xyz')
> Traceback (most recent call last):
> ...
> LanguageNotFoundError: Language code 'xyz' not found.
Return the corresponding LanguageInfo object for a given ISO 639-3 code.
@staticmethod
def get_language_info(iso639_3_code: str) -> LanguageInfo:
"""Return the corresponding LanguageInfo object for a given ISO 639-3 code.
:param iso639_3_code: (str) The 3-letter ISO 639-3 code for the language.
:return: (LanguageInfo) The corresponding LanguageInfo object.
:raises: ValueError: If the provided ISO 639-3 code is not found in the lookup table.
"""
iso639_3_code = iso639_3_code.lower()
language_info = ISO639.LANGUAGES.get(iso639_3_code)
if language_info is None:
raise LanguageNotFoundError(iso639_3_code)
return language_info