[Zope3-dev] Re: Building standalone ZPT from Zope 3 using zpkgtools

[Tres Seaver]

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Shane Hathaway wrote:
> Shane Hathaway wrote:
> 
>>Jim Fulton wrote:
>>
>>
>>>Thanks for the positive feedback. Fred Drake worked very hard
>>>on this.  One thing we did right was to leverage distutils
>>>ability to build binary releases.  I'm also encouraged by work done
>>>at the recent PyCon sprints that someday we'll even have a packaging
>>>system, for Python that will allow us to make installation of packages
>>>much easier too.
>>
>>
>>FWIW, my original reason for trying Gentoo Linux was to evaluate its
>>packaging system, Portage, which is written in Python.  I intended to
>>grab ideas and incorporate them into a new packaging system, but Portage
>>turned out to be so good that I switched to Gentoo and stopped designing
>>my own system.  Portage also leverages distutils and can produce/consume
>>binary packages.
>>
>>Have you thought about porting Portage, or something like it, for use as
>>a general Python package management system?
> 
> 
> BTW, I'll give you an escape hatch. ;-)  Portage is licensed under the
> GPL, which probably excludes it from the Python standard library.
> 
> I'm sure Fred is doing excellent work, but I'm having trouble seeing why
> we need zpkgtools.  Is it not sufficient to just "python setup.py
> install" all of Zope 3?  I've been doing that with Zope 3 Subversion
> checkouts and Twisted, even though I actually use less than 10% of the
> code installed.  In fact, my co-workers are about to put such a system
> into production.  The unused code causes no problems that I've detected.


The thing about namespace pollution is that you often don't notice the
effects until long after the "offending" code runs.

It sounds like you are using Zope3 as libraries, which is the
traditional "sweet spot" for distutis;  zpkgutils is really aimed at the
kind of usage where distutils sucks^H^H^H^H^Hfails to meet expectations,
which is to allow installation of a Python-base *application*, including
related "add-on" packages.


Tres.
- --
===============================================================
Tres Seaver                                tseaver at zope.com
Zope Corporation      "Zope Dealers"       http://www.zope.com

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