Update app.py

app.py

@@ -4,22 +4,24 @@ import numpy as np
 
 # Global variables
 expenses = []
-participants = set()
+participants_set = set()
 
 def add_participant(participant):
-    global participants
+    global participants_set
     if not participant or not participant.strip():
         raise gr.Error("Participant name cannot be empty")
     
     clean_name = participant.strip()
-    participants.add(clean_name)
-    return list(participants)
+    participants_set.add(clean_name)
+    participants_list = list(participants_set)
+    return participants_list, participants_list, participants_list
 
 def remove_participant(participant):
-    global participants
-    if participant in participants:
-        participants.remove(participant)
-    return list(participants)
+    global participants_set
+    if participant in participants_set:
+        participants_set.remove(participant)
+    participants_list = list(participants_set)
+    return participants_list, participants_list, participants_list
 
 # Add expenses
 def add_expense(description, amount, payer, participants_list):
@@ -176,13 +178,6 @@ with gr.Blocks(theme='soft') as app:
         outputs=[participants_list, payer, participants]
     )
     
-    # Update dropdowns when participants change
-    participants_list.change(
-        lambda x: (x, x, x), 
-        inputs=participants_list, 
-        outputs=[participants_list, payer, participants]
-    )
-    
     add_btn.click(
         add_expense, 
         inputs=[description, amount, payer, participants],