remove unused vars, set return val for fn

app.py

@@ -1,4 +1,4 @@
-__all__ = ["is_cat" , "learn", "classify_image", "categories", "image", "labels", "examples", "intf"]
+__all__ = ["is_cat" , "learn", "classify_image", "image", "outputs", "labels", "examples", "intf"]
 
 from fastai.vision.all import *
 import gradio as gr
@@ -8,11 +8,11 @@ def is_cat(x): return x[0].isupper()
 
 learn = load_learner("model.pkl")
 labels = learn.dls.vocab
-categories = ("Dog", "Cat")
 
 def classify_image(img):
+    img = PILImage.create(img)
     pred,idx,probs = learn.predict(img)
-    return dict(zip(categories, map(float, probs)))
+    return { labels[i]: float(probs[i]) for i in range(len(labels)) }
 
 image = gr.inputs.Image(shape=(192, 192))
 outputs = gr.outputs.Label(num_top_classes=3)