Update app.py

app.py

@@ -446,7 +446,7 @@ def vocab_level_inter(text):
   total = 0
   for idx, i in enumerate(text):
     if i in stop_words:
-        lvl = -1
+        lvl = -1000
         interp.append((i, lvl))
         continue
     lvl = int(get_level(i))/4