Update app.py

app.py

@@ -4,16 +4,14 @@ import os
 
 genai.configure(api_key=os.getenv("GOOGLE_PALM_KEY"))
 
+past = ""
 
 def generate(prompt, history, system):
-  history = [['' if item is None else item for item in sub_array] for sub_array in history]
     
-  sub_arrays_as_strings = [' '.join(sub_array) for sub_array in history]
-  result_string = ' '.join(sub_arrays_as_strings)
   response = genai.chat(
-    context=result_string,
+    context=past+", "+system,
     messages=prompt)
-
+  past += response.last
   return response.last
 
 additional = [