No. Competent companies don't hire people for "Python" or "Ruby" per se. But the Ruby developer community is disproportionately well-stocked with web "programmers" who know enough Ruby + JQ + "SQL" (read: AR) to make good-looking, fairly functional websites.
It is easy to shoot these superficial programmers down, even from a cursory browse of a resume.
It's not that Ruby signals that you're a superficial programmer; it's that there are fewer superficial Python devs, and more superficial Ruby devs.
For the most part, your choices of programming language are a terrible way to differentiate or market yourself. You are far better off being clever about picking your application domain.
I don't like Python; I'm a Ruby developer (actually, I don't know why I stopped calling myself a C dev). But I'll freely admit: most Python programmers know Python because they spend their real day job programming.
It is easy to shoot these superficial programmers down, even from a cursory browse of a resume.
It's not that Ruby signals that you're a superficial programmer; it's that there are fewer superficial Python devs, and more superficial Ruby devs.
For the most part, your choices of programming language are a terrible way to differentiate or market yourself. You are far better off being clever about picking your application domain.