app.py

from fast.ai.vision.all import *
import gradio as gr

learn = load_learner('model.pkl')

categories = ('Black Widow','Captain America' 'Hawkeye', 'Hulk', 'Iron man', 'Thor')

def classify_image(img):
    pred,idx,probs = learn.predict(img)
    return dict(zip(categories, map(float, probs)))

image = gr.inputs.Image(shape=(192, 192))
label = gr.outputs.Label()
examples = ['black_widow.jpg', 'hulk.jpg', 'iron_man.jfif']

intf = gr.Interface(fn=classify_image, inputs=image, outputs=label, examples=examples)
intf.launch(inline=False)