werkzeug German noun: "tool". Etymology: werk ("work"), zeug ("stuff")
Werkzeug is a comprehensive WSGI web application library. It began as a simple collection of various utilities for WSGI applications and has become one of the most advanced WSGI utility libraries.
Flask wraps Werkzeug, using it to handle the details of WSGI while providing more structure and patterns for defining powerful applications.
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", 5000, application)
Werkzeug is Unicode aware and doesn't enforce any dependencies. It is up to the developer to choose a template engine, database adapter, and even how to handle requests. It can be used to build all sorts of end user applications such as blogs, wikis, or bulletin boards.