Update app.py

app.py

@@ -99,11 +99,11 @@ def create_demo():
         
         def update_subset2(subset1):
             subset2_dirs, _ = get_next_level(os.path.join(root_dir, subset1))
-            return gr.Dropdown.update(choices=subset2_dirs), gr.Dropdown.update(choices=[])
+            return gr.Dropdown(choices=subset2_dirs, nteractive=True), gr.Dropdown(choices=[], interactive=True)
 
         def update_videos(subset1, subset2):
             _, videos = get_next_level(os.path.join(root_dir, subset1, subset2))
-            return gr.Dropdown.update(choices=videos)
+            return gr.Dropdown(choices=videos, interactive=True)
         
         subset1.change(update_subset2, inputs=subset1, outputs=[subset2, video])
         subset2.change(update_videos, inputs=[subset1, subset2], outputs=video)