app.py

#Q&A Chatbot

from langchain_openai import OpenAI
from dotenv import load_dotenv

load_dotenv()

import streamlit as st
import os


# Funtion to load OpenAI model and get responses

def get_openai_response(input_text):
    llm = OpenAI(openai_api_key=os.getenv("OPEN_API_KEY"), model_name="gpt-3.5-turbo-instruct", temperature=0.5)
    response = llm.invoke(input=input_text)
    return response
## initialize streamlit app

st.set_page_config(page_title="Q&A Demo")
st.header("Langchain Application")

input = st.text_input("Input: ", key="input")

response = get_openai_response(input)

submit=st.button("Generate")

## if ask button is clicked
if submit:
    st.subheader("The response is")
    st.write(response)