Looking for direction for making a kepub plugin
A kepub is a format developed by Kobo based off of epub. It's (almost) an epub with a few files added, the main "html" doc broken into smaller chunks, and extra tags added.
Are there any examples of "format" plugins (pdf,mobi,epub,cbz...) that are mostly based off of another plugin? I'm trying to figure out how I should be doing this, without going the simple route and stupidly copying and pasting a lot of code.
I'm reasonably experienced at programming, by my python experience is so lacking, I want to at least be imitating a good example.