Update app.py

app.py

@@ -1,8 +1,13 @@
 import streamlit as st
 import openai
+from dotenv import load_dotenv
+import os
 
-# Set your OpenAI API key
-openai.api_key = 'your_openai_api_key'
+# Load environment variables from .env file
+load_dotenv()
+
+# Get your OpenAI API key from the environment variables
+openai.api_key = os.getenv('OPENAI_API_KEY')
 
 # Function to classify email
 def classify_email(email_text):