> When the builder installs the package (setup.py install --single-
> version-externally-managed, and more specifically, setuptools'
> install_lib command), __init__.py files are skipped, because they would
> conflict if installed by multiple packages . Instead, setuptools'
> install_egg_info command installs a *-nspkg.pth file that ensures that
> the package exists -- if an __init__.py file exists, it is used, but if
> not, a module is added to sys.modules, so imports work anyway. Since all
> zope projects use setuptools, they don't need the __init__.py files.
Thanks, that info helped me find this:
http://mail.python.org/pipermail/distutils-sig/2009-May/011730.html
I made a test (attached), it fails without the __init__.py in the
namespace package for me like this:
ji...@ec2-staging:~/test_ns$ python test.py
ji...@ec2-staging:~/test_ns$ sudo mv
/usr/lib/python2.5/site-packages/zope/__init__.py* tmp/
ji...@ec2-staging:~/test_ns$ python2.5 test.py
Traceback (most recent call last):
File "test.py", line 1, in <module>
import zope.testpackage
ImportError: No module named testpackage
ji...@ec2-staging:~/test_ns$ sudo mv tmp/__init__.py*
/usr/lib/python2.5/site-packages/zope/
This test failed Debian Lenny and Squeeze machines for python 2.5 and
2.6. Could you check that the same occurs in Ubuntu? You need to extract
the tarball in your home directory and have python-zope.interface
and python-zope.event installed.
P.S. The test is possibly destructive to the machine it runs on, so
use one you don't care about.
Unless we can get the above to work, I think we should not commit your
patch.
> I can add a virtual python-zope.app to some random package, because I
> can't think of the most important zope.app.* library like zope.interface
> is. But I would like to avoid depending on python-zope.app at all,
> that's why I filed this bug.
zope.app.publisher seems to have no zope.app.* dependencies and is
pretty central.
Failing that, I think there's a good argument for putting the virtual
package for zope.app.* in either python-zope.interface or
python-zope.event.
** Attachment added: "test_ns.tar.gz"
https://bugs.launchpad.net/van.pydeb/+bug/619294/+attachment/1513321/+files/test_ns.tar.gz
--
Do not add namespace packages to depends
https://bugs.launchpad.net/bugs/619294
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