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

Ethan Furman ethan at stoneleaf.us
Mon Mar 19 21:42:57 CET 2012

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.baseprefix (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.baseprefix 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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