Update app.py

app.py

@@ -254,7 +254,10 @@ with st.sidebar:
 if st.session_state.run_button_clicked:
         print(f"Inside main logic block. Current loading state: {st.session_state.loading}")
         try:
-            st.session_state.data = get_stock_data(ticker)
+            if os.path.exists("AMZN_data.csv"):
+                st.session_state.data = pd.read_csv("AMZN_data.csv", index_col=0, parse_dates=True)
+            else:
+                st.session_state.data = get_stock_data(ticker)
             
             if st.session_state.data is None:
                 st.session_state.error = f"Could not fetch data for ticker '{ticker}'. It may be an invalid symbol or network issue."