unittest vs py.test?

[Paul Rubin]

"Raymond Hettinger" <vze4rx4y at verizon.net> writes:
> When writing a large suite, you quick come to appreciate being able
> to use assert statements with regular comparision operators, debugging
> with normal print statements, and not writing self.assertEqual over and
> over again.  The generative tests are especially nice.

But assert statements vanish when you turn on the optimizer.  If
you're going to run your application with the optimizer turned on, I
certainly hope you run your regression tests with the optimizer on.