When I run >>> weave.test() I get a bunch of error and output ... Ran 107 test in 25.298s FAILED (errors=9) I am runing Python 2.2.1 and I installed weave-0.2.3.win32. When I tried >>> os.system('gcc -v') I got NameError: name 'os' is not defined. I am new to Python and weave. Any help would be appreciated. Thanks!