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Mon Mar 19 21:42:57 CET 2012 · https://mail.python.org/pipermail/python-dev/2012-March/117807.html

Carl Meyer wrote:
> The bulk of the work in PEP 405 is aimed towards a rather different goal
> from yours - to be able to share an installed Python's copy of the
> standard library among a number of virtual environments. This is the
> purpose of the "home" key in pyvenv.cfg and the added sys.base_prefix
> (which point to the Python installation whose standard library will be
> used). I think this serves a valuable and common use case, but I wonder
> if your use case couldn't also be served with a minor tweak to PEP 405.
> Currently it ignores a pyvenv.cfg file with no "home" key; instead, it
> could set sys.prefix and sys.base_prefix both to the location of that
> pyvenv.cfg. For most purposes, this would result in a broken Python (no
> standard library), but it might help you?

Instead of no home key, how about an empty home key?  Explicit being 
better, and all that.

~Ethan~

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