多级 argparse 子解析器 [英] Multiple level argparse subparsers

问题描述

我在子解析器中有多个级别的子解析器，但是当我运行带有帮助标志的程序时，我只能看到顶级选项的帮助消息和选项.如何查看所有子选项或更深层次的特定子选项的帮助?

I have multiple levels of subparsers within subparsers, but when I run the program with help flag, I see help messages and choices only for top level options. How can I see help for all suboptions, or for specific suboption in deeper level?

推荐答案

要获得子解析器的帮助，请使用类似 python prog.py cmd1 -h 的命令.要获得子子解析器的帮助，python prog.py cmd1 cmd12 -h 应该可以工作.

To get the help for a subparser, use a command like python prog.py cmd1 -h. To get the help for a sub-subparser, python prog.py cmd1 cmd12 -h should work.

默认帮助机制无法通过一个命令显示主解析器和所有子解析器(和子子解析器)的帮助.只是太复杂了.

There isn't a means, with the default help mechanism, to show the help for the main parser and all the subparsers (and sub-subparsers) with one command. It just gets too complicated.

我建议自定义用法和描述.这包括子解析器的标题和描述等.

I'd suggest custom usage and description. That includes titles and descriptions for the subparsers, etc.

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