"Not Invented Here" is far from unique to Python. I've seen it first hand in Ruby (where the number of genuinely unique things in the ::Net namespace that deser

"Not Invented Here" is far from unique to Python. I've seen it first hand in Ruby (where the number of genuinely unique things in the ::Net namespace that deserve to be natively implemented is, let's say, not large), Clojure (where people want "Capistrano, but in Clojure" or "Chef, but in Clojure") and Python ("Oh woe is me, where is Python's Rake?"). I very much doubt any language community is without these sorts of discussions. It drives me up the wall. So much wasted effort. And don't get me started on packaging systems...