Update app.py

app.py

@@ -73,6 +73,11 @@ import os
 
 # Function to get bot response
 def format_prompt(state, bot_index, character_name, character_description):
+    if character_name is None or character_name.strip() == "":
+        character_name = "Ryan"
+    if character_description is None or character_description.strip() == "":
+        character_description = "Ryan is a college student who is always willing to help. He knows a lot about math and coding."
+
     prompt = f"{character_description}\n\n"
     for message in state["history"][bot_index]:
         if message['role'] == 'user':