Here are posts that compares CPython 2.7, 3.3 and PyPy 1.9: 1. web frameworks performance: http://mindref.blogspot.com/2012/09/python-fastest-web-framework.htm

Here are posts that compares CPython 2.7, 3.3 and PyPy 1.9: 1. web frameworks performance: http://mindref.blogspot.com/2012/09/python-fastest-web-framework.html http://mindref.blogspot.com/2012/09/python-fastest-web-frame... 2. template engine performance: http://mindref.blogspot.com/2012/07/python-fastest-template.html http://mindref.blogspot.com/2012/07/python-fastest-template.... It would be interesting to see how PyPy 1.9 compares to 2.0 in those benchmarks.