Update app.py

app.py

@@ -1,9 +1,11 @@
 import gradio as gr
 from fastai.vision.all import *
-from pathlib import Path
+import pathlib
 
-model_path = Path('export.pkl')
-learn = load_learner(model_path)
+plt = platform.system()
+if plt == 'Windows': pathlib.WindowsPath = pathlib.PosixPath
+
+learn = load_learner('export.pkl')
 categories = ('Black', 'Grizzly', 'Teddy')
 
 def classify_image(img):