title: ‘GLib-GIO-Message: Using the 'memory' GSettings backend.’ throw when Face Detection in Ubuntu
body: <p>Each time when I run face detection in Python. It'll throw </p>
  
  <blockquote>
    <p>GLib-GIO-Message: Using the 'memory' GSettings backend.  </p>
  </blockquote>
  
  <p>The below codes are my Python program  <em>haar_face_detect.py</em> :</p>
  
  <blockquote>
  <pre><code># -*- coding: utf-8 -*-
  
  from numpy import *
  import numpy as np
  import cv2
  
  face_cascade = cv2.CascadeClassifier('./haarcascade_frontalface_alt.xml')
  img = cv2.imread('./G20_pictures/7.jpg')    
  gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
  faces = face_cascade.detectMultiScale(gray, 1.2, 1)
  
  for (x,y,w,h) in faces:
          img2 = cv2.rectangle(img,(x,y),(x+w,y+h),(255,255,0),4)
          roi_gray = gray[y:y+h, x:x+w]
          roi_color = img[y:y+h, x:x+w]
  cv2.imshow('img',img)
  print(len(faces))
  
  cv2.waitKey(0)
  cv2.destroyAllWindows()
  cv2.imwrite("save.jpg", img)
  </code></pre>
  </blockquote>
  
  <p>However, the below sentences will be appeared every time follow run  <em>haar_face_detect.py</em>  :</p>
  
  <blockquote>
  <pre><code>$ python haar_face_detect.py 
  GLib-GIO-Message: Using the 'memory' GSettings backend.  Your settings will not be saved or shared with other applications.
  init done 
  opengl support available 
  25
  </code></pre>
  </blockquote>
  
  <p>Then the program will keep running, can not stop, as if stuck the same. The process can only be terminated by forcibly closing.
  Could you please advise me how I can solve this problem? I need detailed instruction to run these commands.</p>
  
  <p>Thanks.</p>