Pytools is a big bag of things that are "missing" from the Python standard library. This is mainly a dependency of my other software packages, and is probably of little interest to you unless you use those. If you're curious nonetheless, here's what's on offer:
argmin, tuple generation, permutation generation, ASCII table pretty printing, Michele Simionato's decorator module, GvR's mokeypatch_xxx() hack, the elusive
flatten, and much more.
More info and downloads are available at the PyTools PyPI page.
You may also check pytools out of my source control.