How to use the radon.complexity.cc_visit function in radon

def _analyze_cc(self):
        import radon
        print radon.__version__
        import inspect
        print inspect.getsource(iter_filenames)
        for name in iter_filenames(self.args.path, self.args.exclude,
                                   self.args.ignore):
            with open(name) as fobj:
                yield name, cc_visit(fobj.read(),
                                     no_assert=self.args.no_assert)