Update app.py

app.py

@@ -1,7 +1,5 @@
 import os 
 import sys
-os.system('pip install detectron2 -f https://dl.fbaipublicfiles.com/detectron2/wheels/cu102/torch1.9/index.html')
-os.system("pip install git+https://github.com/openai/CLIP.git")
 import gradio as gr
 
 # clone and install Detic
@@ -35,6 +33,8 @@ from centernet.config import add_centernet_config
 from detic.config import add_detic_config
 from detic.modeling.utils import reset_cls_test
 
+from PIL import Image
+
 # Build the detector and download our pretrained weights
 cfg = get_cfg()
 add_centernet_config(cfg)