Information on Werkzeug and its purpose

What is Werkzeug?

Werkzeug for all cases and purposes is a comprehensive WSGI web application library.

It originally began as a collection of various utilities of WSGI applications.

Werkzeug now is currently one of the most advanced WSGI utility libraries.

There are two main interesting things about Werkzeug:

 1.) Werkzeug allows the developer to choose the template engine, the database adapter, and how to handle requests.

 2.) Flask actually wraps Werkzeug and uses it to handle the details of WSGI while providing more defined structure and patterns for defining more 
 powerful applications.