Update app.py

app.py

@@ -47,11 +47,13 @@ def process_premiums_file(uploaded_file):
     # Indicate that the CSV has been processed and we're ready to select columns
     st.session_state['select_columns'] = True
 
-# Button to select premiums, disabled if no file has been uploaded
+# Button to select premiums, only displayed and active if a file has been uploaded
 with button_col1:
-    # The button is enabled if a file has been uploaded, otherwise it's disabled
-    if st.button(premiumlabel, disabled=uploaded_file_premiums is None, key=premiumlabel):
-        # If the button is active and clicked, call the callback function
+    # Check if the file has been uploaded
+    file_uploaded = uploaded_file_premiums is not None
+    # The button is enabled if a file has been uploaded, and disabled otherwise
+    if st.button(premiumlabel, disabled=not file_uploaded, key="premiums_button"):
+        # If the button is clicked (active), call the callback function
         process_premiums_file(uploaded_file_premiums)
 
 with button_col2: