Update app.py

app.py

@@ -4,15 +4,11 @@ import os
 
 genai.configure(api_key=os.getenv("GOOGLE_PALM_KEY"))
 
-global past
-past = ""
-
 def generate(prompt, history, system):
-  global past
   response = genai.chat(
-    context=past+", "+system,
+    context=system,
     messages=prompt)
-  past += response.last
+    
   return response.last
 
 additional = [
@@ -24,5 +20,6 @@ gr.ChatInterface(
     chatbot=gr.Chatbot(show_label=False, avatar_images=(None, 'palm-logo.png'), show_share_button=False, show_copy_button=True, likeable=True, layout="panel"),
     additional_inputs=additional,
     title="PaLM-2",
+    description="This is unofficial demo of PaLM-2 based on Google API. History/context memory does not work in this demo."
     concurrency_limit=20,
 ).launch(show_api=False)