app.py

import gradio as gr
from fastai.vision.all import *

learn = load_learner("model_weights.pth")

def predict(image):
    drink, _, probs = learn.predict(image)
    probability = max(list(map(float, probs)))
    return f"this is most likely a {drink} with probability {probability}."

demo = gr.Interface(fn=predict, inputs="image", outputs="text")
demo.launch()