Update app.py

app.py

@@ -19,7 +19,7 @@ def test_input(words):
         if w in all_set:
             word_dict += "{} : in-distribution\n".format(w)
         else:
-            word_dict[w] = "{} : out-of-distribution\n".format(w)
+            word_dict += "{} : out-of-distribution\n".format(w)
     return word_dict