I believe cookiecaper is right for the foreseen future, there is more demand for Python Data-Scientists than Ruby Developers.
But we ignore one important thing here and that is the lesson! People need to learn something from the Python story!
Moving forward with an evolving concept, requires the (mathematical) coherence of all ideas. You cannot invent a spoken language, then break it and say now we speak a different dialect, because we use 2 words less this way. Nobody will adopt, not because the feature of reducing verbosity and increasing expressiveness is actually bad, but because the new concept branches out and technically seen it's "noise", because it adds more without integrating it. You can throw a second motor into a car, but without integrating the second motor, you will have no benefit. Python has to learn this the hard way, Dennis Ritchie and Ken Thompson made a decision for the C programming language about 40 years ago and all of the C code written back then can still be compiled, albeit some things have changed and require minor changes. But this is something you can introduce in a timespan of 40 years. You cannot make a new present every 5 years and say, that all many of the old presents you've made back then, have to be given back, when you accept the new present. Coherence and Evolution are powers that's use should unify and only diversify when required or requested by the diffusion of technology into the userbase.