app.py

import gradio as gr
import joblib as jb

def predict(sex, age, pclass):
    model = jb.load('model.pkl')
    pclass = int(pclass)

    p = model.predict_proba([[sex, age, pclass]])[0]

    return {'Did not survive': p[0], 'Survived': p[1]}

demo = gr.Interface(fn = predict,
inputs = [
    gr.Dropdown(choices=["male","female"], type="index"),
    "number",
    gr.Dropdown(choices=["1","2","3"], type="value")
],
outputs="label")

demo.launch()