Update app.py

app.py

@@ -43,10 +43,10 @@ def infer(question, history):
     print(history[-1])
     
     res = []
-    for human, ai in history:
-        res.append(f"Human:{human}\nAI:{ai}")
-    "\n".join(res)
-    chat_history = res[0]
+    for human, ai in history[:-1]:
+        pair = (human, ai)
+        res.append(pair)
+    chat_history = res
     print(chat_history)
     query = question
     result = qa({"question": query, "chat_history": chat_history})