[Python-Dev] supporting multiple versions of one package in one environment is insane

[Toshio Kuratomi]

On Fri, Oct 09, 2009 at 05:29:28PM +0100, Chris Withers wrote:
> Toshio Kuratomi wrote:
>> On Fri, Oct 09, 2009 at 04:51:00PM +0100, Chris Withers wrote:
>>> Tarek Ziadé wrote:
>>>> Virtualenv allows you to create an isolated environment to install
>>>> some distribution without polluting the
>>>> main site-packages, a bit like a user site-packages.
>>> ...as does buildout, and these are the right type of solution to 
>>> this  problem.
>>>
>> where type of problem == sandboxed environment, sure.  How do you solve the
>> problem for system packagers?
>
> What's to stop a system packager either just running the buildout on  
> install, or running the buildout at package build time and then just  
> dropping the resulting environment wherever they want to install  
> applications? Such a package would only be dependent on the right python 
> version at runtime...
>
If buildout creates sandboxed environments like virtualenv then everything
here applies:

https://fedoraproject.org/wiki/Packaging:No_Bundled_Libraries

You can also listen/watch the talk I gave at PyCon which is linked from that
page:
http://pycon.blip.tv/file/2072580/

If it doesn't create sandboxed environments, then you'll need to give me
about a paragraph explaining what it does do.

-Toshio
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