Update app.py

app.py

@@ -16,11 +16,11 @@ def add_participant(participant):
     participants_list = sorted(list(participants_set))  # Sort for consistent display  
     participants_text = "\n".join(participants_list)  
       
-    # Return updated participant list for dropdowns  
+    # Return updated participant list and new Dropdown instances  
     return (  
         participants_text,  
-        gr.Dropdown.update(choices=participants_list),  
-        gr.Dropdown.update(choices=participants_list)  
+        gr.Dropdown(choices=participants_list, label="Payer", interactive=True),  
+        gr.Dropdown(choices=participants_list, label="Participants", multiselect=True, interactive=True)  
     )  
   
 def remove_participant(participant):  
@@ -28,14 +28,14 @@ def remove_participant(participant):
     participant = participant.strip()  
     if participant in participants_set:  
         participants_set.remove(participant)  
-    participants_list = sorted(list(participants_set))  
+    participants_list = sorted(list(participants_set))  # Sort for consistent display  
     participants_text = "\n".join(participants_list)  
       
-    # Return updated participant list for dropdowns  
+    # Return updated participant list and new Dropdown instances  
     return (  
         participants_text,  
-        gr.Dropdown.update(choices=participants_list),  
-        gr.Dropdown.update(choices=participants_list)  
+        gr.Dropdown(choices=participants_list, label="Payer", interactive=True),  
+        gr.Dropdown(choices=participants_list, label="Participants", multiselect=True, interactive=True)  
     )  
   
 # Add expenses  
@@ -128,7 +128,7 @@ def optimize_balances():
           
         return transactions if transactions else ["No transactions needed"]  
       
-    return simplify_debts(balances)  
+    return "\n".join(simplify_debts(balances))  
   
 # Reset App  
 def reset():  
@@ -139,10 +139,10 @@ def reset():
     participants_text = ""  
     return (  
         pd.DataFrame(expenses),  
-        [],  
+        "",  
         participants_text,  
-        gr.Dropdown.update(choices=participants_list, value=None),  
-        gr.Dropdown.update(choices=participants_list, value=None)  
+        gr.Dropdown(choices=participants_list, label="Payer", interactive=True),  
+        gr.Dropdown(choices=participants_list, label="Participants", multiselect=True, interactive=True)  
     )  
   
 # Gradio Interface  
@@ -217,6 +217,7 @@ with gr.Blocks(theme='soft') as app:
         reset_btn = gr.Button("Reset")  
       
     optimize_btn.click(optimize_balances, inputs=[], outputs=result)  
+      
     reset_btn.click(  
         reset,   
         inputs=[],