Update app.py

app.py

@@ -7,6 +7,9 @@ from detectron2.utils.visualizer import ColorMode, Visualizer
 from detectron2.data import MetadataCatalog
 from detectron2.engine import DefaultPredictor
 import gradio as gr
+import os
+os.system('git clone https://github.com/facebookresearch/detectron2.git')
+os.system('pip install -e detectron2')
 
 cfg = get_cfg()
 add_vit_config(cfg)