title: OpenCV installed but still not found when importing it
body: <p>Good afternoon everyone,</p>
  
  <p>I tried many solutions from other people, but nothing is working.
  I have downloaded OpenCV, but everytime I run the code it says there is no opencv2 on my computer.
  And maybe it is important, I am using a Jetson TX2 with Ubuntu 16.04.
  Here is the error:</p>
  
  <p>File "/usr/local/lib/python3.5/dist-packages/imutils/convenience.py", line 6, in 
      import cv2</p>
  
  <p>ImportError: No module named 'cv2'</p>
  
  <p>In this source, I have the folder 'opencv-3.4.9'</p>
  
  <pre><code>import numpy as np
  import sys
  sys.path.append('/usr/local/lib/python3.5/dist-packages')
  import cv2   
  </code></pre>
  
  <p>...</p>
  
  <p>I hope someone can help me</p>