So, I finally got around to writing some proper documentation for Pushy.
I had originally used Epydoc to extract docstrings, and generate API documents, which I have been hosting. Then I realised I could publish HTML to PyPI, so I thought I'd do something a little more friendly than presenting the gory details of the API.
In the past I've used Asciidoc, a lightweight markup language, in the vein of Wiki markup languages. I found Asciidoc fairly simply to write, and there is a standard tool for processing and producing various output, including of course HTML. I wanted to make my documentation to have the look and feel of the Python standard library, so I've been looking into reStructuredText.
I have to say that reStructuredText is very easy to learn, and Sphinx, which is the processing tool used to generate the HTML output for the Python documentation, is a pleasure to use. The format of reStructuredText is similar to that of Asciidoc. So far I don't have any particular affinity to either - I mainly went with reStructuredText/Sphinx for the Python documentation theming.