On Apr 22, 2015, at 02:25 PM, Chris Barker wrote: >That's it. Done. Now all we need is a way to install these things -- well >that's easy, each sub-package installs itself just like it would, maybe >overwriting the top level directory name and the __init__.py, if another >sub-package has already installed it.
This gets at the heart of the motivation for PEP 420, at least for me with my distro-developer hat on. Any single file can only be owned by exactly one distro-level package. So take the zope.* packages. Which distro package owns zope/__init__.py when you have zope.interfaces, zope.component, etc.? The answer is, none can, because you have no idea which one will be installed first. Distros had to go through a lot of hackery to make this work, but now, we can just delete zope/__init__.py from *all* distro packages (at least for the Python 3 versions) and it will just work. Cheers, -Barry
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