> I don't have a 2.2 checkout handy, but I've got 2.1 and 2.3. I don't > see much difference. Note that I've made N smaller by about 10 to > make it run in reasonable time on my (virtual) machine. My 2.2 apparently had GC turned off. After a clean rebuild I see the same quadratic behavior too. --Guido van Rossum (home page: http://www.python.org/~guido/)