Continuing the discussion from RhinoScript Dash Docset:
I'm a fan of the Dash API documentation utility for OS X. I've generated a Rhino.Python docset based on the Rhino.Python documentation that works great in Dash. The advantage of using this docset is that it allows you to search Rhino.Python functions very quickly - also it works offline:
If you already have Dash installed, you can have Dash subscribe to the docset feed by cutting and pasting this link:
into Dash (Preferences > Downloads Tab > Plus Sign > Docset Feed URL). You will get automatic updates to the docs when they change.
If you don't have Dash installed, you can still download the docset from this link, but you will have install and keep updates in sync manually.
In addition, PyCharm has a Dash plugin you can enable (Preferences > Plugins > Browse Repositories > Dash > control+click ), which allows you to get to these docsets quickly by pressing command + shift + D when your mouse is over a Rhino.Python keyword (h/t to chris bamborough for pointing this out).
There is a Dash-inspired Docset browser called Zeal. To use the Rhino.Python docset with Zeal, download this zip archive, unzip it, and move the RhinoPython.docset to:
(you can define this path in Zeal > Edit > Options > General Tab).
You will need to restart Zeal - you may have to quit Zeal from the system tray first.
Rhino.Python docset in Zeal: