List files for an installed package

def _list_packages(self, args):
        '''
        List files for an installed package
        '''
        packages = self._pkgdb_fun('list_packages', self.db_conn)
        for package in packages:
            if self.opts['verbose']:
                status_msg = ','.join(package)
            else:
                status_msg = package[0]
            self.ui.status(status_msg)