Update app.py

app.py

@@ -3,18 +3,22 @@ import hashlib
 import datetime
 import streamlit as st
 import pandas as pd
+import openai
 import os
 from langchain.chat_models import ChatOpenAI
 from langchain.chains import LLMChain
 from langchain.prompts import PromptTemplate
 
+# Make sure OpenAI's API key is set
+openai.api_key = os.getenv("OPENAI_API_KEY")
+
+if not openai.api_key:
+    raise ValueError("OpenAI API key not set. Check your environment variables.")
+
 # Hotelbeds API credentials
 hotelbeds_api_key = "95ce3e45a02fc6fd9720ecc013a6f674"
 hotelbeds_api_secret = "785150201f"
 
-# OpenAI API credentials
-openai.api_key = os.getenv("OPENAI_API_KEY")
-
 # Function to generate the API signature
 def generate_signature():
     local_timestamp = int(datetime.datetime.now().timestamp())