Reference PIP package for Pygments styles/lexers plugin

[Anteru]

(Original issue 1531 created by ComFreek on 2019-07-15T14:03:03.320979+00:00)

At http://pygments.org/docs/plugins/ it is very shortly outlined how to write Pygments plugins. Is there any reference PIP package showcasing this?

I was not able to get it working with my lexers and styles. In some cases the styles were not or only partly found. I admit, I am not versed with Python enough to understand how to correctly package it up. I think it’d be easier to just start from scratch than try to debug it here with the community.

[jeanas]

Completed in #2550.