[Distutils] Setup tools causes problems with orca finding its python packages

Phillip J. Eby pje at telecommunity.com
Wed Sep 24 19:28:20 CEST 2008

This should now be fixed in the trunk, branch, and the just-released 
0.6c9 version.

At 04:24 PM 9/23/2008 +0100, Michael Whapples wrote:
>This seems to do it (I know that this is not the correct way of doing
>things, but I have made the mistake):
>As root install plasTeX (http://plastex.sf.net, also in pypi) from
>source by using the setup.py script in it. This should add a plasTeX
>directory to your site-packages directory.
>Forget to uninstall it (IE. that source installation is still there when
>you do the following).
>Running as root to perform the install, give the following command
>easy_install -Z plasTeX
>Now look in easy-install.pth in the site packages directory
>(/usr/lib/python2.5/site-packages/easy-install.pth on my system), I
>find /usr/lib/python2.5/site-packages listed there after the above
>I don't believe this is specific to plasTeX but this is the one I
>noticed it with. Also I know this isn't the correct way to do things, we
>should remember to uninstall source installations first, but sometimes
>things slip our minds.
>If plasTeX isn't installed in any form before installing with
>easy_install this bug doesn't show, a subdirectory is created and the
>subdirectory is added.
>Michael Whapples
>On Tue, 2008-09-23 at 10:50 -0400, Phillip J. Eby wrote:
> > At 03:32 PM 9/23/2008 +0100, Michael Whapples wrote:
> > >I have noticed that easy_install has a easy-install.pth file which seems
> > >to be adding the directories specified in it before any other python
> > >package directories, including the environment variable PYTHONPATH. This
> > >causes a problem with orca which uses a bash script to start itself, and
> > >specifies where its python packages should be found by setting the
> > >PYTHONPATH variable. This wouldn't cause problems except when a user has
> > >more than one version of orca installed (eg. a stable version from the
> > >distribution installed in the standard python site-packages directory
> > >and one (SVN trunk version) in a custom directory). I found that
> > >easy_install had added the standard python site-packages directory
> > >(/usr/lib/python2.5/site-packages on my system) to easy-install.pth so
> > >making it impossible to use my custom install of orca as the standard
> > >location was first in sys.path.
> >
> > Eek.  That sounds like a bug.  Can you provide minimal steps to
> > reproduce it?  (i.e., getting a site directory to end up in 
> easy-install.pth)
> >

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