[TIP] testing for sysadmins who know bash advice

[Noah Gift]

I am starting to spread the word about Python to many bash  
programmers, both by writing articles, in the book I am writing that  
is geared toward sysadmins, and finally in person one on one.  Any  
suggestions on how to tackle the challenging problem of explaining  
python and teaching that testing is a good thing?  I find this to be  
reasonably complex, as python is foreign enough, but that last thing I  
want to do is turn someone off from Python forever, by getting to  
heavy handed with testing.  I suppose I like explaining doctest best  
so far, as it is so intuitive, and makes sense to a bash programmer.

Noah