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name: Werkzeug
---
body:
Werkzeug is a WSGI utility library for Python. It's widely used and BSD licensed.
## Werkzeug is Simple
```python
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 2.6, 2.7, 3.3, 3.4 and 3.5.
* 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 and more, as well as in
house frameworks developed for commercial products and websites.
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documentation: http://werkzeug.pocoo.org/docs/
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pypi_name: Werkzeug
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tagline: a WSGI utility library for Python
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website: http://werkzeug.pocoo.org/