I sort of explained why. This is a situation where there is an expertise in Perl already and none in Python. You have a chance to do it better, using the original as a prototype. And you still have the huge eco-system of Perl supporting you. Plack is the ideal example of this. Another is KinoSearch, a rewrite of Java’s Lucene which outperforms it in several metrics and is having some elements of its design back ported to Java because they are so good.
The attitude that it’s already done so why bother, is a losing proposition and not just in software. For example, Assembly can solve every software problem, we shouldn’t create new languages. Soap and good diet can prevent most disease, we shouldn’t worry about medical research.
