Hi!

It would be great to also support Python 3 virtualenv. Closely
related, ability to specify the interpreter would be a good idea
too. For Python 2, we currently have only 2.7 but for Python 3, we may
have both 3.4 and 3.5 for some time.

- -- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (101, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.1.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages dh-virtualenv depends on:
ii  libjs-sphinxdoc    1.3.1-5
ii  python             2.7.9-1
ii  python-virtualenv  1.11.6+ds-1
ii  virtualenv         1.11.6+ds-1

dh-virtualenv recommends no packages.

dh-virtualenv suggests no packages.

- -- no debconf information
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dh-virtualenv supports using Python 3. In addition it also supports the
included, built-in virtual environment that ships with Python 3's standard
library.

For more information, see here:
https://dh-virtualenv.readthedocs.org/en/0.10/usage.html#cmdoption--python