app.py

import os
import openai
import gradio as gr

try:
    openai.api_key = os.environ["OPENAPI_API_KEY"]

except KeyError:
    error_message = "System is at capacity right now.Please try again later"
    print(error_message)
    def chatbot(input):
        return error_message
else:
    messages = [
        {"role": "system", "content": "My AI Assistant"},
    ]

def chatbot(input):
    try:
        if input:
            messages.append({"role": "user", "content": input})
            chat = openai.ChatCompletion.create(
                model="gpt-3.5-turbo", messages=messages
            )
            reply = chat.choices[0].message.content
            messages.append({"role": "assistant", "content": reply})
            return reply
    except openai.error.OpenAIError as e:
        return "System is at capacity right now.Please try again later"

gr.Interface(
    fn=chatbot,
    inputs=gr.inputs.Textbox(lines=7, label="Query"),
    outputs=gr.outputs.Textbox(label="Response"),
    theme=gr.themes.Default(primary_hue="sky")).launch()