Werkzeug is Simple

from werkzeug.wrappers import Request, Response

@Request.application
def application(request):
    return Response('Hello World!')

if __name__ == '__main__':
    from werkzeug.serving import run_simple
    run_simple('localhost', 4000, application)

And Powerful

Werkzeug started as a simple collection of various utilities for WSGI applications and has become one of the most advanced WSGI utility modules. It includes a powerful debugger, fully featured request and response objects, HTTP utilities to handle entity tags, cache control headers, HTTP dates, cookie handling, file uploads, a powerful URL routing system and a bunch of community contributed addon modules.

It does Unicode and doesn't enforce a specific template engine, database adapter or anything else. It doesn't even enforce a specific way of handling requests and leaves all that up to the developer.

In the Box

• HTTP header parsing and dumping
• Easy to use request and response objects
• Interactive JavaScript based in-browser debugger
• 100% WSGI 1.0 compatible
• Supports Python from 2.4 up to 2.7. If you are interested in Python 3 support, please contact us.
• Unicode support
• Basic session and signed cookie support
• URI and IRI utilities with unicode awareness
• builtin library of fixes for buggy WSGI servers and browsers
• integrated routing system for matching URLs to endpoints and vice versa

A Strong Foundation

Werkzeug is the base of frameworks such as Flask, tipfy and many more, as well as in house frameworks developed for commercial products and websites.

What other people say

Have you looked at werkzeug.routing? It's hard to find anything that's simpler, more self-contained, or purer-WSGI than Werkzeug, in general — I'm quite a fan of it!  —  Alex Martelli

Contribute

Found a bug? Have a good idea for improving Werkzeug? Head over to Werkzeug's new github page and create a new ticket or fork. If you just want to chat with fellow developers, visit the IRC channel or join the mailinglist.