Speaking as a python programmer who has occasionally done work in R: yes, of course. Python is not a great language for anything; it's a pretty good language for just about anything. That is, and always has been, its strength.

If you're doing data science all day, you should learn R, even if it's so weird at first (for somebody coming from a C-style language) that it seems way harder; R is made for the way statisticians work and think, not the way computer programmers work and think. If you're doing data science all day, you should start thinking and working like a statistician and working in R, and the fact that it seems to bend your mind is probably at least in part good, because a statistician needs to think differently than a programmer.

I work in python, though, almost all of the time.