Message 121752 - Python tracker
-tt is documented on the page you link to. -b and -bb are only available in Python 3, and are documented there: <http://docs.python.org/py3k/using/cmdline>. -b and -bb also show up in python -h. In the contrary, -t and -tt have been removed in Python 3 (-tt behavior is default now); you can still give them but they have no effect. Giving examples for -W option in python -h would be too much verbosity. All in all, I can't see an issue here.