app.py

import openai
import gradio as gr 

openai.api_key = os.environ["apikey"]

message=[{"role":"system","content":"You are expert in explaining things in brief way"}]
try:
  openai.api_key = os.environ["apikey"]
  def ChatReply(Question):

      message.append({"role":"user","content": Question})
      response = openai.ChatCompletion.create(
                model="gpt-3.5-turbo",
                 messages= message)

      reply= response["choices"][0]["message"]["content"]   
      message.append({"role":"assistant","content":reply})
      return reply
except:
  print("Try Again")
  
reply = gr.Interface(
    fn=ChatReply,
    inputs=gr.Textbox(label="Explainer", placeholder="E.g. Flutter?"),
    outputs=gr.Textbox(label="Get a simple answer in return:"),
    theme="dark",
    title="Explain things in simple way"
    )

reply.launch()