import osimport sysfrom TdcPlugin import TdcPlugin from tdc_config import *  class SubPlugin(TdcPlugin):    def __init__(self):        self.sub_class = 'root/SubPlugin'        super().__init__()     def pre_suite(self, testcount, testlist):        # run commands before test_runner goes into a test loop        super().pre_suite(testcount, testlist)         if os.geteuid():            print('This script must be run with root privileges', file=sys.stderr)            exit(1)