Update app.py

app.py

@@ -25,14 +25,14 @@ random_test_samples = dataset["test"].select(random.sample(range(0, len(dataset[
 
 examples = []
 for row in random_test_samples:
-    examples.append([row['support'], None])
+    examples.append([row['support'], ""])
     examples.append([row['support'], row['correct_answer']])
 
 
-def predict(context, answer):
+def predict(context = "", answer = ""):
     formatted = context.replace('\n', ' ') + "\n"
     
-    if answer is not None:
+    if answer is not "":
         formatted = context.replace('\n', ' ') + "\n" + answer.replace('\n', ' ') + "\n"