[Distutils] Setuptools projects with '-' in their names (was Re: some kind of problem with setuptools 0.6a9)
Phillip J. Eby
pje at telecommunity.com
Fri Dec 30 17:51:44 CET 2005
At 10:04 AM 12/30/2005 -0500, Kevin Dangoor wrote:
>The "tg-admin sql" command uses sqlobject which, in turn uses egg
>metadata. Something I just noticed is that these commands are no
>longer working on a project i have called "Wiki-20". They *used* to
>work. Now they get a "DistributionNotFound" error for Wiki-20.
>I had also tried to just do "pkg_resources.require("WIki-20")" from
>the Python shell, but that didn't work either. This is new behavior
>between a8 and a9. Let me know if there's anything else I can tell you
>about the problem...
Hi all. Due to the recent addition of versioned '.egg-info' support for
system packages, you may have to rename any current '.egg-info' if your
project name has a '-' in it. Otherwise, recent versions of setuptools
will think the '-' is the separator between the project name and version
number, leading to problems like the ones described by Kevin above.
I've added code to the latest SVN setuptools to detect this problem and
warn you about it, as well as tell you what you should rename the .egg-info
If you have a '-' in your project's name, and you are using an 0.6a9dev
version of setuptools, you should upgrade and rename the .egg-info
directory. If you distribute any source releases of your project or have
users tracking SVN or CVS releases of it, you *must* make your project
require setuptools>=0.6a9dev_r41857, by passing it to ez_setup, e.g.::
from ez_setup import use_setuptools
If you do not do this, and a user has an older version of setuptools, they
will encounter problems.
If you wait for the official release of 0.6a9 to upgrade, and you use its
ez_setup.py or ez_setup/__init__.py, you can avoid having to change the
setup script as shown.
Again, all this applies only to projects with a '-' in their names, and
only if *you* are upgrading from 0.6a8 to an 0.6a9 development or final
release. Your project's users can upgrade to 0.6a9 without breakage, as
there is a backward compatibility mode for everything but "setup.py
develop" (which will refuse to run until the .egg-info directory has been
More information about the Distutils-SIG