fix app.py

app.py

@@ -1,21 +1,21 @@
 from fastai.vision.all import *
-path = untar_data(URLs.PETS)
-def is_cat(x): return x[0].isupper()
+
+def is_cat(x): return x[0].isupper() 
+
+path = untar_data(URLs.PETS)/'images'
+
 dls = ImageDataLoaders.from_name_func('.',
     get_image_files(path), valid_pct=0.2, seed=42,
     label_func=is_cat,
     item_tfms=Resize(192))
 
-dls.show_batch()
-
 learn = vision_learner(dls, resnet18, metrics=error_rate)
-learn.fine_tune(1)
-learn.path = Path('.')
-learn.export()
+learn.fine_tune(3)
+
+learn.export('model.pkl')
 
-learn=load_learner('export.pkl')
+learn=load_learner('model.pkl')
 labels = learn.dls.vocab
-print(labels)
 def predict(img):
     img = PILImage.create(img)
     pred,pred_idx,probs = learn.predict(img)