[Distutils] buildout 2 craziness: "upgrading" to distribute 0.6.26 and using site-packages from another python install
Marius Gedminas
marius at pov.lt
Fri Apr 5 17:14:52 CEST 2013
On Fri, Apr 05, 2013 at 11:52:17AM -0300, Chris Withers wrote:
> This is driving me nuts, I hope someone can help.
>
> So, pre-amble, I'm on a Mac, I have a few python installations, the
> ones in play here are:
<snip>
> buzzkill:xlutils chris$ cat bin/buildout
> #!/usr/local/bin/python2.6
>
> import sys
> sys.path[0:0] = [
> '/Users/chris/buildout-eggs/distribute-0.6.35-py2.6.egg',
> '/Users/chris/buildout-eggs/zc.buildout-2.1.0-py2.6.egg',
> ]
...
> buzzkill:xlutils chris$ bin/buildout
> Upgraded:
> distribute version 0.6.26;
> restarting.
> Generated script '/Users/chris/LocalGIT/xlutils/bin/buildout'.
...
> buzzkill:xlutils chris$ cat bin/buildout
> #!/usr/local/bin/python2.6
>
> import sys
> sys.path[0:0] = [
> '/Users/chris/buildout-eggs/zc.buildout-2.1.0-py2.6.egg',
> '/Library/Frameworks/EPD64.framework/Versions/7.3/lib/python2.7/site-packages',
> ]
I've seen this on Ubuntu. IIRC a Python 3-bootstrapped buildout ended
up with /usr/lib/python2.7/dist-packages in sys.path, in my case.
> Come again?! Why is site-packages from a *different python
> installation* ending up in bin/buildout?
>
> Any help here would be very gratefully received...
Workaround #1: run 'bin/buildout -N' so it won't try to upgrade
distribute.
Workaround #2: always always always wrap your buildouts in a virtualenv.
I started using a 'virtual-bootstrap' script that does
#!/bin/sh
rm -rf develop-eggs .installed.cfg python
virtualenv --distribute python
python/bin/python bootstrap.py
bin/buildout "$@"
and haven't encountered any issues yet.
Marius Gedminas
--
When in trouble or in doubt,
run in circles, scream and shout.
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