[issue18367] See if a venv setup can be used for devinabox for coverage

[Brett Cannon]

Brett Cannon added the comment:

So first thing is that you can't relocate a venv. The --upgrade option is only for when you upgrade a Python installation in-place (e.g. go from 3.3 to 3.4 but otherwise all other details stay the same). The --clear option empties out the directories so nothing will stick around.

IOW without adding a --move option to pyvenv, a venv is not worth leaving around in the box. It is probably reasonable, though, to provide a script or integrate into full_coverage.py to set up the venv and such.

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<http://bugs.python.org/issue18367>
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