[Python-Dev] In-Python virtualisation and packaging (original) (raw)

Carl Meyer carl at oddbird.net
Tue Jun 14 01:27:05 CEST 2011

On 06/13/2011 06:55 AM, Michael Foord wrote:

There are two options:

Bring the full functionality into the standard library so that Python supports virtual environments out of the box. As is the case with adding anything to the standard library it will then be impossible to add features to the virtualization support in Python 3.3 once 3.3 is released - new features will go into 3.4.

I think it's not hard to provide enough hooks to allow third-party tools to extend the virtualenv-creation process, while still having enough code in the stdlib to allow actual creation of virtualenvs. Virtualenv already has very few features, and doesn't get very much by way of new feature requests -- all the UI sugar and significant shell integration goes into Doug Hellmann's virtualenvwrapper, and I wouldn't foresee that changing.

IOW, I don't think the maintenance concerns outweigh the benefits of being able to create virtualenvs with an out-of-the-box Python.

Add only the minimal changes required to support a third-party virtual environment tool.

Virtual environments are phenomenally useful, so I would support having the full tool in the standard library, but it does raise maintenance and development issues. Don't forget windows support! ;-) All the best, Michael Foord

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