Do you have a need for it? Is there some project you think it would be well suited to python? Do you just want to learn it for diversity? Do you need good style forced on you? What are your aspirations in terms of programming? To be a "jack-of-all-trades" or an expert?
Depending on the answers to these it may or may not be worth learning. It may serve you well to learn C better (threading with pthreads, variable argument lists, bridges to other languages like Java via JNI, etc.) or C++ (boost seems to be popular, but i can't speak from experience), or to pick a language that is more diverse than the current group than python. A functional language would serve you well to broaden your horizons. I like haskell, but Lisp (and its buddy Scheme) are probably in wider use.
-Lee