This plugin reimplements docutil's
code directive without pygments, using
just the suggested standard HTML5 markup like this:
<pre> <code class="language-python"> def f(): pass </code> </pre>
I have tested it using prismjs.com to do the actual highlighting and it seems to work.
It implements support for most of the Sphinx extensions, such as
:emphasize-lines: but you
will need a prismjs with optional plugins, such as "Line Highlight" or "Line Numbers"
:force: options are ignored.
You can report issues with this plugin and request help via GitHub Issues.