Update app.py

app.py

@@ -7,11 +7,11 @@ import faiss
 from groq import Groq
 
 # Fetch API key from environment variable
-API_KEY = os.environ.get('GroqApi')
+API_KEY = os.environ.get("GroqApi")
 
-# Initialize variables
-INDEX = None
+# Global variables for index, chunks, and model
 CHUNKS = None
+INDEX = None
 MODEL = None
 
 # Function to scrape tariff data
@@ -73,8 +73,8 @@ url = st.text_input("Enter Tariff Data URL", "https://iesco.com.pk/index.php/cus
 if st.button("Process Tariff Data"):
     with st.spinner("Extracting and processing data..."):
         try:
+            global CHUNKS, INDEX, MODEL  # Ensure global declaration is at the top
             text = scrape_tariff_data(url)
-            global CHUNKS, INDEX, MODEL
             CHUNKS = chunk_text(text)
             INDEX, embeddings, MODEL = create_faiss_index(CHUNKS)
             st.success("Data processed and indexed!")