How to recognize the language from accuracy rate?

[pythnewaccount]

I completed both training and testing. If I give 1 testing input, it is not predicting accuracy rate & y_pred, it shows 0.00% accuracy. Why?
I got accuracy rate & y_pred if I give multiple inputs, from this how to recognize the language? should we compare the label number(y_pred) with the training csv file?

Another doubt is, how you are labeling these files, I mean, in that csv file, we have file names and labels, how to give that label name?Is there any particular method?Or can we give any number randomly?

Thank you...

[ccoppa]

@pythnewaccount have you figured out about the label name in the listfile? I also wonder the same thing and can't find anything.