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1 parent 72d8a5a commit 77dc629f261a3fbe775141d4d03892006851ba0c Simon Willison committed May 11, 2009
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+(pronounced "djing", with a mostly-silent "d")
+djng is a micro-framework that depends on a macro-framework (Django).
+My definition of a micro-framework: something that lets you create an entire
+Python web application in a single module:
+ import djng
+ def index(request):
+ return djng.Response('Hello, world')
+ if __name__ == '__main__':
+ djng.serve(index, '', 8888)
+Or if you want hello and goodbye URLs, and a custom 404 page:
+import djng
+ app = djng.ErrorWrapper(
+ djng.Router(
+ (r'^hello$', lambda request: djng.Response('Hello, world')),
+ (r'^goodbye$', lambda request: djng.Response('Goodbye, world')),
+ ),
+ custom_404 = lambda request: djng.Response('404 error'),
+ custom_500 = lambda request: djng.Response('500 error')
+ )
+ if __name__ == '__main__':
+ djng.serve(app, '', 8888)
+Under the hood, djng will re-use large amounts of functionality from Django,
+while re-imagining various aspects of the framework. A djng request object is
+a Django HttpRequest object; a djng response object is a Django HttpResponse.
+Django's template language and ORM will be available. Ideally, Django code
+will run almost entirely unmodified under djng, and vice versa.
+Services, not Settings
+I dislike Django's file - I often find I want to reconfigure
+settings at run-time, and I'm not comfortable with having arbitrary settings
+for so many different aspects of the framework.
+djng experiments with /services/ in place of settings. Services are bits of
+shared functionality that djng makes available to applications - for example,
+caching, templating, ORM-ing and mail-sending.
+Most of the stuff that Django sets up in will in djng be set up by
+configuring services. These services will be designed to be reconfigured at
+run-time, using a mechanism similar to Django middleware.
+Some things that live in that really don't belong there -
+middleware for example. These will generally be constructed by composing
+together a djng application in code.
+I'm still figuring out how the syntax for services should work.

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