when translation fails

[az0]

Would you please test and document the behavior when translation fails, such as when the language is not supported (distinct from an HTTP error)?

Example (Cherokee):

from textblob import TextBlob
txt=u'    Ꭰ Ꭱ Ꭲ Ꭳ Ꭴ Ꭵ Ꭶ Ꭷ Ꭸ Ꭹ Ꭺ Ꭻ Ꭼ Ꭽ Ꭾ Ꭿ Ꮀ Ꮁ Ꮂ Ꮃ Ꮄ Ꮅ Ꮆ Ꮇ Ꮈ Ꮉ Ꮊ Ꮋ Ꮌ Ꮍ Ꮎ Ꮏ Ꮐ Ꮑ Ꮒ Ꮓ Ꮔ Ꮕ Ꮖ Ꮗ Ꮘ Ꮙ Ꮚ Ꮛ Ꮜ Ꮝ Ꮞ Ꮟ Ꮠ Ꮡ Ꮢ Ꮣ Ꮤ Ꮥ Ꮦ Ꮧ Ꮨ Ꮩ Ꮪ Ꮫ Ꮬ Ꮭ Ꮮ Ꮯ Ꮰ Ꮱ Ꮲ Ꮳ Ꮴ Ꮵ Ꮶ Ꮷ Ꮸ Ꮹ Ꮺ Ꮻ Ꮼ Ꮽ Ꮾ Ꮿ Ᏸ Ᏹ Ᏺ Ᏻ Ᏼ '
bl=TextBlob(txt)
bl_en=bl.translate(to='en')

[sloria]

TextBlob will return whatever result is returned by the Google Translator. There really currently no way to detect whether language of the source text is unsupported.

[jschnurr]

If the translation is unsuccessful, the original string is returned, with whitespace removed:

>>> translator.translate(u'        Ꭰ Ꭱ Ꭲ Ꭳ Ꭴ Ꭵ     ', to_lang='en')
Ꭰ Ꭱ Ꭲ Ꭳ Ꭴ Ꭵ

However, the JSON response from the API includes both the original and translated string. If they match, we could infer that the translation was not successful.

{
   "sentences":[
      {
         "trans":"Ꭰ Ꭱ Ꭲ Ꭳ Ꭴ Ꭵ",
         "orig":"Ꭰ Ꭱ Ꭲ Ꭳ Ꭴ Ꭵ",
         "translit":"",
         "src_translit":""
      }
   ],
   "src":"en",
   "server_time":1
}

What would be the desired behavior in that case - return None?

[az0]

Yes, either return None or raise an exception.

Thanks