Python web framework emphasizing flexibility and rapid development

 Pylons combines the very best ideas from the worlds of Ruby, Python and Perl,
 providing a structured but extremely flexible Python web framework. It's also
 one of the first projects to leverage the emerging WSGI standard, which allows
 extensive re-use and flexibility, but only if you need it. Out of the box,
 Pylons aims to make web development fast, flexible and easy.