[CentralOH] CountDown.ipynb

[jep200404 at columbus.rr.com]

On Fri, 28 Nov 2014 22:17:22 -0500, pybokeh <pybokeh at gmail.com> wrote:

> http://nbviewer.ipython.org/github/pybokeh/ipython_notebooks/blob/master/dates/CountDown.ipynb

http://nbviewer.ipython.org/url/colug.net/python/dojo/20141128/dojo-20141128-2-datetime.ipynb

yet todo:

Write tests,
which should have been written before the code that they test.

Handle negative deltatimes better.

Would like to avoid magic number for duration to sleep.

Would be nice to have a wait that takes no more than 
a specified percentage of CPU, for any CPU.