def create(self):
        # Create new virtual environment
        print('\nStep 1. Create new virtual environment')

        if not os.path.isdir(self.dest_dir) or CONFIG['virtualenv']['clear']:
            kwargs = copy.copy(CONFIG['virtualenv'])
            kwargs['home_dir'] = self.dest_dir

            verbosity = int(kwargs['verbose']) - int(kwargs['quiet'])
            logger = virtualenv.Logger([
                (virtualenv.Logger.level_for_integer(verbosity - 2),
                 sys.stdout),
            ])

            del kwargs['dest_dir'], kwargs['quiet'], kwargs['verbose']

            virtualenv.logger = logger
            virtualenv.create_environment(**kwargs)
        else:
            print('Virtual environment %r already exists.' % self.dest_dir)
dataset/ETHPy150Open playpauseandstop/tddspry/tests/bootstrap.py/Environment.create/swapped operands of `-`