> 'cmdoption' is a directive, while 'option' is inline markup. Therefore I
> wouldn't say they're completely similar, just meant for different purposes. Both
> a directive and inline markup is useful for describing "official python
> executable options/flags". Regarding per-module options, I'm not sure special
> markup is needed at all. So a policy has to be define regarding the correct
> usage of these directives/markups, and probably documented in
> Doc/documenting/markup.rst

I've done that now in r82961.

As per your recommendation in the updated documentation guide, I have fixed the ReST docs of stdlib modules that used :option:, to use code markup (``) instead. I've opened issue 9312 for this and submitted a patch.

Eli