[TIP] cleanUp for unittest

[Victoria G. Laidler]

Kumar's example code:
> def setUp(self):
>    self.db = ScratchDb()
>    self.db.setup()
>    self.cleanUp.append(lambda: self.db.teardown())
>
>    self.tmp = TempIO()
>    self.cleanUp.append(lambda: self.tmp.destroy())
>
>   
This looks clean to me except for the lambda, which I don't understand - 
help?
and I'm dithering on whether I think it ought to be a list, as proposed, 
or something else.

My usual case for cleanup behavior is file deletion, with different 
files to be deleted depending on how far I got. Would this work?

self.cleanUp.append(os.unlink(somefile))

Vicki