def _help_command(command):

    if command in subcommand.default_subcommands():
        emitter.publish(default_command_documentation(command))
        return 0
    else:
        executable = subcommand.command_executables(command)
        return subprocess.call([executable, command, '--help'])
:param command: the command name for which you want to see a help
dataset/ETHPy150Open dcos/dcos-cli/cli/dcoscli/help/main.py/_help_command