[Python-Dev] PEP 405 (built-in virtualenv) status

Christian Tismer tismer at stackless.com
Mon Jun 4 20:01:28 CEST 2012


On 6/4/12 4:11 PM, Carl Meyer wrote:
> Hello Christian,
>
> On 06/03/2012 03:56 PM, Éric Araujo wrote:
>> Le 02/06/2012 12:59, Christian Tismer a écrit :
>>> One urgent question: will this feature be backported to Python 2.7?
>> Features are never backported to the stable versions.  virtualenv still
>> exists as a standalone project which is compatible with 2.7 though.
> To add to Éric's answer: the key difference between virtualenv and
> pyvenv, allowing pyvenv environments to be much simpler, relies on a
> change to the interpreter itself. This won't be backported to 2.7, and
> can't be released as a standalone package.
>
> It would be possible to backport the Python API and command-line UI of
> pyvenv (which are different from virtualenv) as a PyPI package
> compatible with Python 2.7. Because it wouldn't have the interpreter
> change, it would have to still create environments that look like
> virtualenv environments (i.e. they'd have to have chunks of the stdlib
> symlinked in and a custom site.py). I suppose this could be useful if
> wanting to script creation of venvs across Python 2 and Python 3, but
> the utility seems limited enough that I have no plans to do this.
>

Thank you call. Sad, but I see.

I guess I could produce an extension as add-on that mutates python2.7's
behavior ;-)

kidding-ly y'rs  - chris

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