Installing OpenCV, No module named cv2.cv

Question

I am trying to follow the instructions found here for python.

Step 1 seemed to work, here are the last 5 lines from my terminal after I ran opencv.sh:

h.h  
./opencv.sh: line 16: cmake: command not found
make: *** No targets specified and no makefile found.  Stop.
sudo: checkinstall: command not found
OpenCV 2.4.9 ready to be used

However, when I moved on to step 2 I got the following error when running the python file from the command line:

Traceback (most recent call last):
  File "opencvFirst.py", line 4, in '<'module'>'
    from cv2.cv import *
ImportError: No module named cv2.cv

This doesn't seem to be my issue, because I can't find cv2.anything located on my computer, which is most likely part of the problem, but I don't know why step 1 wouldn't have installed it.

I think that this question is a little closer to what I need, but since I already completed step 1, as I said above, I'm not sure where to start with these separate instructions. I tried import cv2 but got an import error: no module cv2.

I'm very new to ubuntu, python, and all this command line stuff, thank you for your help!

Oh also, I should say: my final goal here is just to get OpenCV working, so if there is an easier/better way to do so, I am very open to suggestions.

Solution 1

Are you sure the installation worked properly? Because all I see during your first step is:

cmake: command not found
checkinstall: command not found

So maybe you should check that both cmake and checkinstall are installed, or install them if they are not before retrying the opencv.sh command:

sudo apt-get install cmake checkinstall
sudo ./opencv.sh

Solution 2

By installing python-opencv package you should be able to solve the problem

sudo apt-get install python-opencv

Comments

[lnhubbell]

'apt-get cmake' gives me: E: Invalid operation cmake, same for checkinstall