[BangPypers] missing dependency while installing virtualenvwrapper on ubuntu-12.04

Noufal Ibrahim noufal at nibrahim.net.in
Fri Jul 20 11:18:34 CEST 2012

vid <vid at svaksha.com> writes:

> An upgrade to ubuntu 12.04 gives this error:
> $ sudo pip install virtualenvwrapper
> Traceback (most recent call last):
>   File "/usr/local/bin/pip", line 5, in <module>
>     from pkg_resources import load_entry_point
>   File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2711,
> in <module>
>     parse_requirements(__requires__), Environment()
>   File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 584, in resolve
>     raise DistributionNotFound(req)
> pkg_resources.DistributionNotFound: pip==1.1
> Is it a missing (or just not versioned) dependency or packaging error?

Looks like the package metadata is getting messed up because of a non Ubuntu pip
(/usr/local/bin) and an Ubuntu Python.

I'd recommend that you either `apt-get install virtualenvwrapper` and
use that to manage your venvs or `apt-get install python-virtualenv`,
use that to create a virtualenv and install virtualenvwrapper inside
that venv and use that. 

Using `sudo` to install something that touches system directories
(thereby bypassing the native package management framework) is usually
the first step to a broken system.



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