Pytest is more pythonic than the xUnitTest suite in the standard library. It is authored by the same genius who authored pypy, hence the wow about it. Nosetes

Pytest is more pythonic than the xUnitTest suite in the standard library. It is authored by the same genius who authored pypy, hence the wow about it. Nosetest was forked off pytest as a way to maintain the project several years ago, but pytest came back to life and eventually superseded nose. The fixtures in pytest is a very clever way to structure your tests around dynamic "given" set of inputs.