Internal Program Version: werkzeug  3.1.3

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.

http://pypi.python.org/pypi/Werkzeug