unittest / pdb tricks?

[Sam Falkner]

I'm doing a lot of work with the unittest module right now.  I like
the default behavior of unittest.main(), where it runs as many tests
as it can, even if some fail.

But, what I also want is the option to be able to do "pdb.pm()" when a
test fails.  Looking at the source for unittest.py, it doesn't look
like there's a way to have the failure "fail far enough" to run
pdb.pm().

Do other people do this?  If so, what's an easy and clean way to do
it?

Thanks!

- Sam