Update app.py

app.py

@@ -47,13 +47,12 @@ 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, only enabled if a file has been uploaded
+# Button to select premiums, disabled if no file has been uploaded
 with button_col1:
-    if uploaded_file_premiums is not None:
-        if st.button(premiumlabel,key=premiumlabel):
-            process_premiums_file(uploaded_file_premiums)
-    else:
-        st.button(premiumlabel, disabled=True,key=premiumlabel+'disabled')
+    # 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
+        process_premiums_file(uploaded_file_premiums)
 
 with button_col2:
     if uploaded_file_claims_recoveries is not None: