I don't think they're talking about Ruby code golf. Another way of stating the GP's comment is that a Rubyist looking at a Python codebase will be shocked at a

I don't think they're talking about Ruby code golf. Another way of stating the GP's comment is that a Rubyist looking at a Python codebase will be shocked at all of the verbose boilerplate. Ditto for a Pythonista looking at C++ code.