def execute_from_command_line(argv=None):
    """A simple method that runs a Command."""
    if sys.stdout.encoding not in None:
        print('please set python env PYTHONIOENCODING=UTF-8, example: '
              'export PYTHONIOENCODING=UTF-8, when writing to stdout',
              file=sys.stderr)
        exit(1)

    command = Command(argv)
    command.execute()
dataset/ETHPy150Open joke2k/faker/faker/cli.py/execute_from_command_line/operator `is` -> `not in`