title: How can i install opencv in python3.7 on ubuntu?
body: <p>I have a Nvidia Jetson tx2 with the orbitty shield on it. 
  I got it from a friend who worked on it last year. It came with ubuntu 16.04. I updated everything on it and i installed the latest python3.7 and pip.</p>
  
  <p>I tried checking the version of opencv to see what i have but when i do import cv2 it gives me :
  Traceback (most recent call last):
    File "", line 1, in 
  ModuleNotFoundError: No module named 'cv2'</p>
  
  <p>Somehow besides python3.7 i have python2.7 and python3.5 installed. If i try to import cv2 on python2.7 and 3.5 it works, but in 3.7 it doesn't. </p>
  
  <p>Can u tell me how can i install opencv in python3.7 and the latest version?</p>