Update app.py

app.py

@@ -54,10 +54,10 @@ def create_thread(client):
 def create_message(client, thread, msg):
     print(msg)
     
-    attachments = "{}"
+    attachment = "{}"
     
     #if msg[files]:
-    #    attachments = "{}"
+    #    attachment = "{}"
         
     message = client.beta.threads.messages.create(
         role="user",