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import typing
from babelfish import Language, LanguageReverseConverter, LanguageReverseError
from babelfish.converters import CaseInsensitiveDict
class GuessLanguageConverter(LanguageReverseConverter):
def __init__(self, config: typing.Mapping[str, str]):
self.synonyms = CaseInsensitiveDict()
for synonym, code in config.items():
lang = Language.fromietf(code) if '-' in code else Language(code)
self.synonyms[synonym] = (lang.alpha3, lang.country.alpha2 if lang.country else None, lang.script)
def convert(self, alpha3: str, country=None, script=None):
return str(Language(alpha3, country, script))
def reverse(self, name: str):
try:
return self.synonyms[name]
except KeyError:
pass
for conv in (Language.fromname,):
try:
reverse = conv(name)
return reverse.alpha3, reverse.country, reverse.script
except (ValueError, LanguageReverseError):
pass
raise LanguageReverseError(name)
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