For performance and algorithms the implementations at http://shootout.alioth.debian.org/u32q/python.php http://shootout.alioth.debian.org/u32q/python.php and pa

For performance and algorithms the implementations at http://shootout.alioth.debian.org/u32q/python.php http://shootout.alioth.debian.org/u32q/python.php and pay attention to the different benchmarks. Also all RPython code coming from pypy, sometimes shown in http://morepypy.blogspot.com/ http://morepypy.blogspot.com/ They are reimplementing all the C modules and doing a great job. The new implementations are of course closer to current best practices in python. Enjoy.