[Distutils] buildout bootstrap.py doesn't work on Sabayon Linux with system python

[Marius Gedminas]

On Thu, Aug 22, 2013 at 09:07:52PM -0700, Benedek Zoltan wrote:
> I've downloaded bootstrap.py and tried to initialize with system python:
> 
> sabd1 at sab /home/buildout $ wget http://svn.zope.org/*checkout*/zc.buildout/trunk/bootstrap/bootstrap.py   

FWIW that's an old version.  You should be using one of

  wget http://downloads.buildout.org/1/bootstrap.py
  wget http://downloads.buildout.org/2/bootstrap.py

to get a bootstrap for zc.buildout 1.7.x or 2.2, respectively.

If you don't know which one you want, use 2.

> sabd1 at sab /home/buildout $ python bootstrap.py 
> Downloading http://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11-py2.7.egg                  
> Traceback (most recent call last):                                                                        
...
> pkg_resources.VersionConflict: (setuptools 0.6c11 (/tmp/tmpzJN6Tt/setuptools-0.6c11-py2.7.egg), Requirement.parse('setuptools>=0.7'))
> 
> I know, it works with virtualenv, but with system python is this expected behavior?

Basically, yes.  At least it's what I've come to expect.

Here's my fool-proof method of setting up buildouts on the brave new
post-setuptools-0.7 world:

  virtualenv python
  python/bin/pip install -U setuptools
  python/bin/python bootstrap.py
  bin/buildout

You'll notice that I upgrade setuptools in the virtualenv I created.
That's because I'm using python-virtualenv from Ubuntu, and it installs
an old copy of distribute in the virtualenv by default.  Then bootstrap
tries to upgrade it to the newest distribute, which is a shim that
depends on new setuptools, but bootstrap's upgrader isn't smart enough
to go and fetch dependencies so it all breaks down in the same error you've
seen.  Upgrading setuptools with pip avoids this failure.

Marius Gedminas
-- 
Beware of bugs in the above code; I have only proved it correct, not tried it.
                -- Donald Knuth
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