title: Setup OpenCV 2.3 w/ python bindings in ubuntu
body: <p>How to install OpenCV (exactly 2.3.*, not 2.1.*) with python bindings in Ubuntu (or generally, in Linux)? I've seen few manuals on Windows installations, but none for Linux.
  I've read and used <a href="http://opencv.willowgarage.com/wiki/InstallGuide">instructions from willow garage site</a>:</p>
  
  <pre><code>wget downloads.sourceforge.net/project/opencvlibrary/opencv-unix/2.3.1/OpenCV-2.3.1a.tar.bz2
  tar -xvf OpenCV-2.3.1a.tar.bz2
  cd OpenCV-2.3.1/
  mkdir release
  cd release
  cmake -D WITH_TBB=ON -D BUILD_NEW_PYTHON_SUPPORT=ON -D WITH_V4L=OFF -D INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON -D BUILD_EXAMPLES=ON ..
  make
  sudo make install
  </code></pre>
  
  <p>All seems to be ok, except that <code>make install</code> output does not mention python.
  After that I'm trying to import opencv module in python REPL:</p>
  
  <pre><code>~$ python
  Python 2.6.6 (r266:84292, Sep 15 2010, 15:52:39) 
  [GCC 4.4.5] on linux2
  Type "help", "copyright", "credits" or "license" for more information.
  &gt;&gt;&gt; import numpy # so numpy is installed
  &gt;&gt;&gt; import cv
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
  ImportError: No module named cv
  &gt;&gt;&gt; import cv2
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
  ImportError: No module named cv2
  </code></pre>
  
  <p>What am I doing wrong?</p>