Hop on a command line and try these commands out!
I have been using Python 2.7.1 on Mac OS X.
1) bash-3.2$ source ./config/xutools.env // Set your PATH and PYTHONPATH 2) bash-3.2$ make test // All tests should pass. 3) bash-3.2$ groff -man -Tascii doc/man1/xugrep.1 // Read the manpages and try the examples therein