I'm not sure why that started happening -- but I do think using a virtual
env is a good solution.

On Mon, Nov 30, 2015 at 3:31 PM, Dave Brondsema <[email protected]> wrote:

> I was rebuilding my docker environment and ran into a problem.  We install
> directly into the system python location (no virtualenv needed if in
> docker),
> and that location /usr/local/lib/python2.7 is shared between our
> containers so
> they all have the same packages installed at once.  This had been working
> fine
> for me.
>
> With my rebuild, I started getting errors with the version of "six"
> because the
> system comes with an older version of "six" and ubuntu has pip set up to
> not
> override that:
>
> Downloading/unpacking six==1.7.3 (from -r requirements.txt (line 45))
>   Downloading six-1.7.3-py2.py3-none-any.whl
> ...
>   Found existing installation: six 1.5.2
>     Not uninstalling requests at /usr/lib/python2.7/dist-packages, owned
> by OS
>
> This also happens with "chardet" and "requests" but they happen to be
> newer than
> what we list in requirements.txt  And we can't just use the older version
> of
> "six" because paster throws this error:
>
> ...
> pkg_resources.VersionConflict: (six 1.5.2
> (/usr/lib/python2.7/dist-packages),
> Requirement.parse('six>=1.6.1'))
>
> I tried using ubuntu 15.10 instead of 14.04 (LTS) but it runs into issues
> with
> "requests", quite possibly because the versions are wrong with that too.
>
> We wouldn't want to use wrong versions of any packages anyway, even if we
> could
> somehow force it to work.
>
> So, I am thinking we should actually use a virtualenv inside the
> containers, so
> we get the packages we want and don't get interference from the system
> packages.
>  It should be easy to add that to the build steps, but it'll probably mean
> longer commands when running paster commands, to make sure you're in the
> venv.
> Unless we can find some way to always set the PATH.
>
> I don't know why this started happening all of a sudden though.  Any
> ideas?  We
> should fix before making a release, since our recommended installation
> path no
> longer works :(
>
>
>
> --
> Dave Brondsema : [email protected]
> http://www.brondsema.net : personal
> http://www.splike.com : programming
>               <><
>

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