[throwaway5752]

My experience is that pure FP languages have enormous individual productivity but that comes at the expense of lower team productivity/collaboration (my experience, even if not universal or even correct, is that in practice they are fairly idiomatic from developer to developer) and maintenance over time can be an issue for similar reasons. For simple systems and system management scripting, I will take the simpler language.

That said, I'd want a very high concurrence system written in a function language over Python any day (gil notwithstanding). But I'm fine with Python not being that language.