While hacking on an XML pickler, I found that pickle.py got nearly twice as fast in 2.2 comparing to 2.1 and 2.0.
The code in pickle.py doesn't seem to have changed much. Anybody know where that speedup came from ? Can somebody on another (non-Linux) system please verify this.
I believe DOM nodes are now new-style classes, for better or for worse (it might create problems when combining with classic mixins). Could that explain it?
--Guido van Rossum (home page: http://www.python.org/%7Eguido/)