On 03/22/2011 06:50 AM, Reinout van Rees wrote: > On 11-03-11 14:27, Barry Warsaw wrote: >>> I have tried with system default python 2.5, and namespace packages >>> >works. The same when I create a virtual environment with python 2.6. >>> >The problem seems to just be with system default python 2.6. >>> > >>> >I'm using the original setuptools (installed from sources), and not the >>> >one provided by Debian. >> Yes, I think this is going to give you problems because it doesn't >> know about >> dist-packages, and site-packages is not on sys.path by default in the >> system >> Python. Please try again with the Ubuntu setuptools package (which is >> really >> distribute). It's been modified to know about dist-packages.
Debian/Ubuntu's setuptools package has been modified to _install into_ dist-packages in /usr/local, but it has no control over sys.path. Putting dist-packages onto sys.path is handled by Debian/Ubuntu modifications to the site.py in the Python standard library; it isn't affected by which setuptools you use. That said, I haven't looked into the specific problem with namespace packages - it's still possible that using the Debian/Ubuntu setuptools package to install the namespace packages might solve that. > Note that this debian-specific behaviour also "ruins" other things: > buildout 1.5+ can detect system-wide installed eggs and use them if you > tell it to. Handy if you want to use stuff like mapnik and so with lots > of dependencies. > > Only: buildout cannot detect the eggs in their non-standard locations as > buildout obviously doesn't have the ubuntu setuptools' fix... This sounds more likely to be caused by not having the site.py changes I mentioned above. IIRC buildout 1.5 uses "python -S" to avoid the automatic import of site.py, so it would never see the Debian/Ubuntu modifications in site.py. As long as buildout uses "-S", I think the only fix for that would be for buildout's "detect system-wide eggs" feature to add in explicit workaround/support for dist-packages. This is what virtualenv does. Carl _______________________________________________ Distutils-SIG maillist - [email protected] http://mail.python.org/mailman/listinfo/distutils-sig
