app.py

import gradio as gr

demo = gr.Interface(fn=recom, 
             inputs=[gr.Dropdown(choices = list(desc['title'][:20]), multiselect=True, max_choices=3, label="Movies"), 
                     gr.Radio(["bert", "scibert", "nltk" , "none"], value="none", label="Tokenization and text preprocess")], 
             outputs=gr.Textbox(label="Recommended"))
demo.launch()