PEP 3107 and stronger typing (note: probably a newbie question)

[Roy Smith]

greg <greg at cosc.canterbury.ac.nz> wrote:

> Paul Rubin wrote:
> > E.g. your program might pass its test and run properly for years
> > before some weird piece of input data causes some regexp to not quite
> > work.
> 
> Then you get a bug report, you fix it, and you add a test
> for it so that particular bug can't happen again.

The TDD zealots would tell you you've got the order wrong.  Instead of 
"fix, then write a test", it should be "write a failing test, then fix it".