title: Testing IPython Notebooks
body: <p>I'm starting to use IPython notebooks to document some of my code with interactive usage examples.  In order to avoid having the documentation get too far out of date from the code, I'd like the code in the notebook to get executed on a regular basis to catch any changes in output and to flag runtime errors.</p>
  
  <p>I use <code>nosetests</code> to run regression tests and was wondering if there is a way to have it execute IPython Notebooks for this purpose.  Note that I'm not trying to run <code>nosetests</code> from within the IPython notebook (as is done in <a href="https://github.com/taavi/ipython_nose">ipython_nose</a>).  Something more along the lines of the <code>doctest</code> plugin.  Does such a plugin exist?</p>