write the app.py and upload data

app.py

@@ -81,7 +81,7 @@ def ask(query, max_attempt_times=3):
     while answer is None and attempt_times<max_attempt_times:
         attempt_times += 1
         try:
-            response = openai.ChatCompletion.create(
+            answer = openai.ChatCompletion.create(
                 model="gpt-3.5-turbo",
                 messages=[
                     {"role": "user", "content": query}
@@ -129,7 +129,7 @@ def showcase(access_key):
         recent_qas = qas[:10]
         chatbot_ret = [(f"Your entered Access Key is correct.", f"The latest {len(recent_qas)} query-responses are displayed below.")]
         for qa in recent_qas:
-            chatbot_ret += [(qa["q"].replace("\n","<br>"), qa["a"].replace("\n","<br>"))]
+            chatbot_ret += [(qa["q"].replace("\n","<br>"), str(qa["a"]).replace("\n","<br>"))]
     return chatbot_ret