Why cv2.so missing after opencv installed?

Question

Today I installed opencv 2.4.4 to Ubuntu 12.10

But import cv2 not works.

root@-:~# python
Python 2.7.3 (default, Sep 26 2012, 21:53:58) 
[GCC 4.7.2]          


        

Answer 1

In my case it was a problem with cmake:

sudo apt install software-properties-common
sudo add-apt-repository ppa:george-edison55/cmake-3.x
sudo apt update

If cmake is not yet installed:

sudo apt install cmake

If cmake is already installed:

sudo apt upgrade

For more information, see this link.