Update app.py

app.py

@@ -3,6 +3,8 @@ import gradio as gr
 from PIL import Image
 import torch
 
+os.system('python3 -m pip install -r requirements_manual.txt')
+
 os.system('mkdir weights')
 os.system('curl -L -o weights/hybridnets.pth https://github.com/datvuthanh/HybridNets/releases/download/v1.0/hybridnets.pth')