Python 3 virtualenvs

[D.M. Procida]

I have a new installation of Debian Jessie, with Python 2.7 and 3.4
installed.

I want to use Python 3.4 by default for most things, so I want
virtualenv to create Python 3.4 virtualenvs unless I ask it to
otherwise.

It turns out that this seems to be inordinately complex.

The best solution I have come up with is to alias virtualenv to
'virtualenv -p python3.5', which seems really ugly and clunky.

Then I discover things like
<http://askubuntu.com/questions/603935/pyvenv-vs-venv-vs-python-virtualenv-vs-virtualenv-and-python-3>
and realise it's not just me, it really is a nasty mess and nobody seems
to understand what's going on.

Daniele