How to Add Python Extension on Windows

I have downloaded the latest stable release of Avogadro from source forge (1.2.0) on windows.

I would like to be able to draw vectors on top of my molecule (for describing moments of inertia).

I couldn’t find a way to do this in Avogadro, so I figured the best way to do this would be through an extension (I’m thinking action DrawVector([x,y,z]) -> calls Avogadro::Painter::drawLine(...) ).

However when I put my script into the lib\avogadro\1_2\extensions\ folder it appears it doesn’t get loaded in (I can’t see the menu item).

I’m hoping it is possible to do this without needing to re-build binaries etc. (this is even recommended here)

Creating a Third Party Plugin - Avogadro This page is unfortunately incomplete.

As a side note I also don’t know how to start the python interpreter in the application, this would probably be sufficient for my needs (as long as I can call Painter.drawLine(v)).

Here is a gist for my extension code: Avogadro python draw vector extension · GitHub