Update app.py

app.py

@@ -3,6 +3,9 @@ from PIL import Image
 import src.depth_pro as depth_pro
 import numpy as np
 import matplotlib.pyplot as plt
+import os
+
+os.system("source get_pretrained_models.sh")
 
 # Load model and preprocessing transform
 model, transform = depth_pro.create_model_and_transforms()