'Check the source code using PyLint.'

def handle(self, *args, **options):

    pylint_args = list(args)
    if (('all' in pylint_args) or (len(pylint_args) == 0)):
        if ('all' in pylint_args):
            pylint_args.remove('all')
        from desktop import appmanager
        apps = ['desktop']
        for app in appmanager.DESKTOP_APPS:
            apps.append(app.name)
        pylint_args = (apps + pylint_args)
    pylint_prog = paths.get_build_dir('env', 'bin', 'pylint')
    pylint_args = ([pylint_prog, ('--rcfile=' + settings.PYLINTRC)] + pylint_args)
    if (not os.path.exists(pylint_prog)):
        msg = (_("Cannot    find    pylint    at    '%(path)s'.    Please    install    pylint    first.") % {'path': pylint_prog})
        logging.error(msg)
        raise CommandError(msg)
    logging.info(('Running    pylint    with    args:    %s' % ('    '.join(pylint_args),)))
    subprocess.call(pylint_args)
