app.py

from subprocess import Popen, PIPE, STDOUT, check_output
import gradio as gr

def run(input_image):
    output = check_output(["chmod", "a+x", "bin/detect-image"])
    cmd = 'bin/detect-image'
    p = Popen(cmd, shell=True, stdin=PIPE, stdout=PIPE, stderr=STDOUT, close_fds=True)
    return p.stdout.read()

gr.Interface(
    fn=run,
    inputs=gr.Image(type="pil", label="Input Image"),
    outputs=gr.Textbox(),
).launch()