app.py

import gradio as gr
import openai
from langchain.chat_models import ChatOpenAI
from langchain.chains import ConversationChain
from langchain.memory import ConversationBufferMemory
from langchain.schema import (
    AIMessage,
    HumanMessage,
    SystemMessage
)
# import random
# import time

llm = ChatOpenAI(temperature=0.0, openai_api_key="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")
memory = ConversationBufferMemory()
conversation = ConversationChain(
    llm=llm, 
    memory = memory,
    # verbose=True
)

with gr.Blocks() as demo:
    chatbot = gr.Chatbot()
    msg = gr.Textbox()
    clear = gr.ClearButton([msg, chatbot])

    def respond(message, chat_history):
        bot_message = conversation.predict(input=message)
        chat_history.append((message, bot_message))
        return "", chat_history

    msg.submit(respond, [msg, chatbot], [msg, chatbot])

if __name__ == "__main__":
    demo.launch()