Translation rights for books in human languages are a well established thing.

I wonder if there's any analogue for technical books using a particular computing language, ie the base explanatory text is kept the same (as much as possible) but the code samples are "translated" to another computer language ?

For example, if I didn't know Python, it would be great to be able to pick up a "translation" of your book with the code written in a similar language such as Ruby.

Obviously, only a subset of tech books could be treated in this fashion, but a way for authors to license their existing content for uses like this would be interesting.