title: How can I get CVtypes for OpenCV working in Python on Ubuntu
body: <p>I have downloaded <a href="http://www.cs.unc.edu/~gb/blog/2007/02/04/python-opencv-wrapper-using-ctypes/" rel="nofollow">CVtypes</a> and tried the example scripts with it but cannot get it working. The error I get is:</p>
  
  <pre><code>pete@pete-MacBookPro:~/python_scratch/cvtypes$ python showcam.py 
  Traceback (most recent call last):
    File "showcam.py", line 1, in &lt;module&gt;
      from CVtypes import cv
    File "/home/pete/python_scratch/cvtypes/CVtypes.py", line 580, in &lt;module&gt;
      _cxDLL = cdll.cxcore100
    File "/usr/lib/python2.6/ctypes/__init__.py", line 423, in __getattr__
      dll = self._dlltype(name)
    File "/usr/lib/python2.6/ctypes/__init__.py", line 353, in __init__
      self._handle = _dlopen(self._name, mode)
  OSError: cxcore100: cannot open shared object file: No such file or directory
  </code></pre>
  
  <p>I have installed all these packages for good measure which I thought would contain the required libs:</p>
  
  <pre><code>libcv-dev - development files for libcv
  libcv2.1 - computer vision library
  libcvaux-dev - development files for libcvaux
  libcvaux2.1 - computer vision extension library
  libhighgui-dev - development files for libhighgui
  libhighgui2.1 - computer vision GUI library
  opencv-doc - OpenCV documentation and examples
  python-opencv - Python bindings for the computer vision library
  </code></pre>