bug fix

app.py

@@ -1,8 +1,8 @@
-from subprocess import Popen, PIPE, STDOUT
+from subprocess import Popen, PIPE, STDOUT, check_output
 import gradio as gr
 
 def run(input_image):
-    output = subprocess.check_output(["chmod", "a+x", "bin/detect-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()