Lua is pretty well established in the gaming world as a lightweight but fast scripting engine. It seems to be gaining some momentum in other domains lately too.

Lua is pretty well established in the gaming world as a lightweight but fast scripting engine. It seems to be gaining some momentum in other domains lately too. It's somewhat similar to Python but without the extensive standard library. It's not going away but it's hard to say how much bigger it will grow. It seems like a good fit for mobile devices. It's used in Corona, for example. Edit: corrected Cocos2D -> Corona. Thanks!