I'm working on a plugin that is supposed to be like xfce4-i3-workspaces plugin only written in Python3, because that plugin doesn't support transparency, theming from the config, and background color. I also don't know C yet. Only I'm having trouble finding a library to write the plugin portion of my program in.
There's this mirror here of xfce4-rss-plugin written in Python2, so it seems like it can be done. None of the libraries for that are found in either python-pip or pacman on Arch though. Furthermore something called "pyxfce" seems to have a page that's gone.