app.py

# Q&A chatbot
# Run as: streamlit run app.py

from langchain.llms import OpenAI
import streamlit as st

import os
from dotenv import load_dotenv

load_dotenv()

# Function to load OpenAI model and get responses
def get_openai_response(question):
    llm = OpenAI(openai_api_key=os.getenv("OPENAI_API_KEY"), model="gpt-3.5-turbo-instruct", temperature=0.0)
    response = llm(question)
    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("Ask a question")
if submit:
    st.subheader("Response: ")
    st.write(response)