Good python code for code reading
alecco: For performance and algorithms the implementations at
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/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.