1A Python utilities collection for building WSGI applications. 2 3Werkzeug does not try to be a framework, and instead started as a simple 4collection of various utilities useful for building WSGI applications. 5It has since become one of the most advanced collections of its kind. 6 7It includes a powerful debugger, fully featured request and response 8objects, HTTP utilities to handle entity tags, cache control headers, 9HTTP dates, cookie handling, file uploads, a powerful URL routing 10system and a bunch of community contributed add-on modules. 11