Talking about gargant.dispatch, dispatcher library for WSGI applications. https://pypi.python.org/pypi/gargant.dispatch

1. gargant.dispatch
a flexible dispatcher for WSGI
@hirokiky

2. @hirokiky
Contributing to Django, django-localflavor
Admin of djangoproject.jp
BePROUD Inc

3. Talk about pure WSGI library
Not Django

4. Pure WSGI dispatcher
urlrelay
example code by WSGI.org
WebDispatch

5. gargant.dispatch
A dispatcher for WSGI application.
now available on PyPI
2.7, 3.3 support

6. Basic usage
Creating tree
>>> from gargant.dispatch import Node, path_matching
>>> from path.to.yours import wsgi_app
>>> tree = Node((path_matching(['']),),
... case=wsgi_app,
... name='first')
Base setting (a.k.a Routing)
path.to.yours.wsgi_app will be called when PATH_INFO='/'

7. Basic usage
And creating WSGI app
>>> from wsgiref.simple_server import make_server
>>> from gargant.dispatch import make_wsgi_app
>>> app = make_wsgi_app(tree)
>>> httpd = make_server('', 8000, app)
>>> httpb.serve_forever()

8. Node
gargant.dispatch.Node is not just for creating a WSGI application.
>>> tree = Node((path_matching(['']),),
... case='dolls')
>>> node = tree({'PATH_INFO': '/'})
>>> node.case # 'dolls'

9. Hierarchy
>>> tree = Node((path_matching(['']),),
... case='dolls',
... children=(
... Node((path_matching['fifth']),
... case='shinku'),
... ))
>>>
>>> node = tree({'PATH_INFO': '/fifth'})
>>> node.case # 'shinku'
>>> node = tree({'PATH_INFO': '/'})
>>> node.case # 'dolls'

10. Matching
matchings is not only path_matching
>>> tree = Node((path_matching(['']),
... method_matching('get'),
... lambda environ: True),
... case='dolls',
... )
>>>
>>> node = tree({'PATH_INFO': '/',
... 'REQUEST_METHOD': 'GET'})
>>> node.case # 'dolls'
matchings return function handling environ
All of matchings return values (as bool True), the node will be
matched

11. URL args
node.metched is values returned by matchings
>>> tree = Node((path_matching(['']),),
... case='doll_list',
... children=(
... Node((path_matching(['{doll}']),),
... case='doll_detail',
... ),
... ))
>>>
>>> node = tree({'PATH_INFO': '/first'})
>>> node.case # 'doll_detail'
>>> node.matched[0]['doll'] # 'first'

12. and more...
Adaptation of each path
iteration leaf node to root node
Getting URL from node.name (future)

13. Let's write dispatcher
gargant.dispach is experimental/for education project
please give me your feedback

15. thanks
gargant.dispatch
@hirokiky