app.py

import gradio as gr

def append_text_to_file(text):
    file_path = 'text_file.txt'
    with open(file_path, 'a') as file:
        file.write(text + '\n')
    with open(file_path, 'r') as file:
        new_content = file.read()
        print(new_content)
    return file_path

with gr.Blocks() as demo:
    tb_input = gr.Textbox(label='enter some text')
    fi_output = gr.File(type='binary')
    tb_input.submit(append_text_to_file, inputs=tb_input, outputs=fi_output)
    
demo.launch(debug=True)