Make sure to add label function in app.py

app.py

@@ -2,6 +2,14 @@ import gradio as gr
 import fastai
 from fastai.vision.all import *
 
+def label_func(x):
+    if x.name[0] == 'm':
+        return "Mustang"
+    elif x.name[1] == "a":
+        return "Camaro"
+    elif x.name[1] == "h":
+        return "Challenger" 
+
 learn = load_learner('export-2.pkl')
 labels = learn.dls.vocab
 def predict(img):