Zowee - into Unit testing at last!

I have languished at chapter 2 of"Test Driven Development by Example"
the classic by Kent Beck, but unfortunately after 3 years or so, I still find it nearly as unreadable as Craig Larman's majestic but insomnia-curing
"Applying UML and Patterns" -- so today I jumped to the half way point, like a bad murder mystery reader, and discovered part 2 which is a joy where he boot-straps a unit testing framework from scratch in Python.
It is completely enchanting and transcends the whole yawny 'you-should but why bother' reaction brought on by the first section. Almost entirely my fault of course, but the combination of starting from scratch and the test and run cylcle with an interpreted language just brings the whole business to life -- finally I think I am getting it