Comment 1 for bug 1170003

Upstream changelog since 1.8.4:

1.9.1 (2013-03-08)
~~~~~~~~~~~~~~~~~~

* Updated to pip 1.3.1 that fixed a major backward incompatible change of
  parsing URLs to externally hosted packages that got accidentily included
  in pip 1.3.

1.9 (2013-03-07)
~~~~~~~~~~~~~~~~

* Unset VIRTUAL_ENV environment variable in deactivate.bat (Pull #364)
* Upgraded distribute to 0.6.34.
* Added ``--no-setuptools`` and ``--no-pip`` options (Pull #336).
* Fixed Issue #373. virtualenv-1.8.4 was failing in cygwin (Pull #382).
* Fixed Issue #378. virtualenv is now "multiarch" aware on debian/ubuntu (Pull #379).
* Fixed issue with readline module path on pypy and OSX (Pull #374).
* Made 64bit detection compatible with Python 2.5 (Pull #393).

d/changelog:

python-virtualenv (1.9.1-0ubuntu1) raring; urgency=low

  * New upstream release.
    - debian/patches/multiarch.patch: Removed; applied upstream.

 -- Barry Warsaw <email address hidden> Wed, 17 Apr 2013 10:32:01 -0400