When I was reading examples for testing a package in multiple pythons with tox I found about a command "build_tests" that would put (2to3'd) test files in build/ directory. I could also google it in some projects' tox.ini files and some gentoo ebuilds, but I still don't know which package installs this command. I have python 3.2, last nosetests and last distribute, but "python setup.py build_tests" still gives error.
So what do I have to install to get this command?
OK, I did some more lookup and I found that at least in nose there is a custom script that adds this command. So I will probably have to copy this idea if I want to have tests for py3k.
Where to find build_tests command?