app.py

import os

import gradio as gr

hf_token = os.getenv('TEST_TOKEN')
print(f"Hugging Face token: {hf_token}")

if hf_token is None:
    raise ValueError("Hugging Face token not found")

with gr.Blocks() as demo:
    token_input = gr.Textbox(label="Important token", value=hf_token)
    output = gr.Textbox(label="Important token output")
    btn = gr.Button("Submit")

    btn.click(lambda x:x, inputs=token_input, outputs=[output])

if __name__ == "__main__":
    demo.launch()