Update app.py

app.py

@@ -419,8 +419,6 @@ def gradio_ask(user_message, chatbot, chat_state, gr_img, img_list, upload_flag,
         text_box_show = 'Input should not be empty!'
     else:
         text_box_show = ''
-    if not isinstance(path_list, list):
-        path_list = []
     if isinstance(gr_img, dict):
         gr_img, mask = gr_img['image'], gr_img['mask']
     else:
@@ -492,8 +490,6 @@ def gradio_stream_answer(chatbot, chat_state, img_list, temperature):
 def gradio_visualize(chatbot, gr_img, path_list):
     if isinstance(gr_img, dict):
         gr_img, mask = gr_img['image'], gr_img['mask']
-    if not isinstance(path_list, list):
-        path_list = []
     unescaped = reverse_escape(chatbot[-1][1])
     visual_img, generation_color = visualize_all_bbox_together(gr_img, unescaped)
     if visual_img is not None:
@@ -589,7 +585,7 @@ with gr.Blocks() as demo:
 
     upload_flag = gr.State(value=0)
     replace_flag = gr.State(value=0)
-    path_list = gr.State(value=0)
+    path_list = gr.State(value=[])
     image.upload(image_upload_trigger, [upload_flag, replace_flag, img_list], [upload_flag, replace_flag])
 
     with gr.Row():