Update app.py

app.py

@@ -65,7 +65,8 @@ def sentence_similarity(sent1, sent2, stopwords):   #Creating words in sentences
         if w in stopwords:
             continue
         vector2[all_words.index(w)] += 1
-
+    if np.isnan(1 - cosine_distance(vector1, vector2)):
+        return 0
     return 1 - cosine_distance(vector1, vector2)