Returning an undefined variable on exception

[aurore54f]

Returning an undefined variable on exception

[Aurore54F]

Fixed.
And fixed the None case in PreprocessingJsData.py:

i = 0;
	#if label != None and label != []:
		#i = 1; # To have a vector with one extra space for the label
	vectNGramsProba = np.zeros(len(dicoNgramIint) + i);	
	for key in dicoJS: # Key = n-gram
		if key in simplifiedListNGrams: # Simplification so as not to consider n-grams that never appear
			if NGramsRepresentation.nGramToInt(dicoNgramIint, key) is not None:
				vectNGramsProba[NGramsRepresentation.nGramToInt(dicoNgramIint, key)] = dicoJS[key];