Upload 3 files

.env

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+OPENAI_API_KEY = ""

app.py

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+from langchain_community.llms.openai import OpenAI
+from dotenv import load_dotenv
+import os
+
+load_dotenv() # load environment variables from .env
+print(os.getenv("OPENAI_API_KEY"))
+
+import streamlit as st
+
+# Function to load OpenAI model and get response
+def get_openai_response(question):
+    llm = OpenAI(openai_api_key=os.getenv("OPENAI_API_KEY"),
+                 temperature=0.9)
+    response = llm(question)
+    return response
+
+
+# initialize our Streamlit App
+    
+st.set_page_config(layout="wide", 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 submit is clicked
+if submit:
+    st.subheader("The Response is")
+    st.write(response)
+

requirements.txt

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+openai
+streamlit
+langhain
+python-dotenv # helps to create and upload the variable with respect to our applications