So I'm trying to use the inputs to grab the index from one of the lists, then use the index to grab the string from the other list. I think it's failing to look for the input in list 1 which is why I'm not getting any indexes. I wrote:

   for language in langlist:
      i = langlist.index()

then later:

   return greetlist[i]

Does anyone know what I might be doing wrong?

JS version:

assertSimilar is deprecated, use assertDeepEquals