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app.py

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+# Q&A Chatbot
+from langchain.llms import OpenAI
+
+from dotenv import load_dotenv
+
+load_dotenv()  # take environment variables from .env.
+
+import streamlit as st
+import os
+
+
+## Function to load OpenAI model and get respones
+
+def get_openai_response(question):
+    llm=OpenAI(model_name="text-davinci-003",temperature=0.5,openai_api_key=os.getenv("OPEN_API_KEY"))
+    response=llm(question)
+    return response
+
+##initialize our 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 the question")
+
+## If ask button is clicked
+
+if submit:
+    st.subheader("The Response is")
+    st.write(response)
+
+
+

requirements.txt

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+langchain == 0.0.332
+OpenAI == 0.28.0
+streamlit
+python-dotenv==1.0.0
+huggingface_hub