[Zope3-Users] Re: ZCML, practicality, purity (was "Excellent perspective...")

Stephan Richter srichter at cosmos.phy.tufts.edu
Fri Dec 23 11:25:18 EST 2005

On Thursday 22 December 2005 18:48, Jeff Shell wrote:
> Other problems that I've had with Python based configuration in the
> past has involved not knowing when to do the configuration. Do I want
> to register the class I just defined in the module code?
> class Foo(...):
>     pass
> registerAsFooable(Foo)

Right, this is what twisted does and it makes it very hard to see what 
components are available and where they come from. It also makes it 
practically impossible to override components without getting into the 
ordering mess you mentioned.

I also note that the code browser now supports looking at ZCML files. Not only 
will it highlight the code for you, but also provide links to specified 
components. I think this might be very helpful for people to discover the 
system. ZCML is a great way of getting a quick overview on how things hang 

Stephan Richter
CBU Physics & Chemistry (B.S.) / Tufts Physics (Ph.D. student)
Web2k - Web Software Design, Development and Training

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