def crubadan_to_iso(self, lang):
        for i in self._lang_mapping_data:
            if i[0].lower() == lang.lower():
                return i[1]
Return ISO 639-3 code given internal Crubadan code
dataset/ETHPy150Open nltk/nltk/nltk/corpus/reader/crubadan.py/CrubadanCorpusReader.crubadan_to_iso