When you speak about executing code, then yes, out of the box it's limited to python. But literate programming is not executing code, but templating text and ge

When you speak about executing code, then yes, out of the box it's limited to python. But literate programming is not executing code, but templating text and generating output-files. Leo can do this with any language, and has syntax-support for the most important ones out of the box. Additionally it's realtive simple to extend the executing-support for any language you want. Leo is quite extendable in python.