app.py

import gradio as gr
import pandas as pd
import time

def value_func():
    return pd.DataFrame({"a": [1, 2, 3], "b": [4, 5, 6]})

with gr.Blocks() as demo:
    gr.DataFrame(value=value_func)
    gr.Textbox(value=time.time, every=1)

demo.launch()