At 06:40 PM 7/25/2005 -0500, Ian Bicking wrote: >But configuration and composition of multiple independent applications >into a single process isn't. I don't think we can solve these >separately, because the Hard Problem is how to handle configuration >alongside composition. How can I apply configuration to a set of >applications? How can I make exceptions? How can an application >consume configuration as well as delegate configuration to a >subapplication? The pipeline is often more like a tree, so the logic is >a little complex. Or, rather, there's actual *logic* in how >configuration is applied, almost all of which are viable.
We probably need something like a "site map" configuration, that can handle tree structure, and can specify pipelines on a per location basis, including the ability to specify pipeline components to be applied above everything under a certain URL pattern. This is more or less the same as my "container API" concept, but we are a little closer to being able to think about such a thing. Of course, I still think it's something that can be added *after* having a basic deployment spec. >I can figure out a bunch of ad hoc and formal ways of accomplishing this >in Paste; most of it is already possible, and entry points alone clean >up a lot of what's there (encouraging a separation between how an >application is invoked generally, and install-specific configuration). >But with a more limited and declarative configuration it is harder. But the tradeoff is greater ability to build tools that operate on the configuration to do something -- like James Gardner's ideas about backup/restore and documentation tools. >Also when configuration is pushed into factories as keyword arguments, >instead of being pulled out of a dictionary, it is much harder -- the >configuration becomes unhackable. But a **kw argument *is* a dictionary, so I don't understand what you mean here. _______________________________________________ Web-SIG mailing list Web-SIG@python.org Web SIG: http://www.python.org/sigs/web-sig Unsubscribe: http://mail.python.org/mailman/options/web-sig/archive%40mail-archive.com
