[Pythonmac-SIG] pyObjC and Plugins

[Dethe Elza]

Hi Steve,

At some point py2app went from being bundled as part of PyObjC to  
being a separate install.  I think at that time there was a  
requirement to uninstall the old py2app before installing the new  
one.  I don't guarantee that is the solution to the problem you're  
having, but it's a possibility (your problem sounds very much like  
what I was facing, and this fixed it for me).  Instructions for  
uninstalling (and reinstalling) py2app are here:

http://svn.pythonmac.org/py2app/py2app/trunk/doc/ 
index.html#uninstalling-py2app-0-2-x-or-earlier

Also, while it may help to remove older versions of and altgraph,  
bdist_mpkg, macholib, modulegraph, I'm pretty sure you don't have to  
install them explicitly.  They should come along as part of the  
py2app install, if I recall correctly.  The link above is to the  
py2app docs, so you should be able to find all the info there.

Good luck, and let us know how it goes!

--Dethe

On 28-Feb-07, at 10:11 PM, Steve Freitas wrote:

> Hi all,
>
> I've spent all evening unsuccessfully trying to get the  
> EnvironmentPrefs
> plugin working on my setup, and I hope you can help. I keep getting
> this:
>
> 2007-02-28 21:56:58.918 System Preferences[522] *** -[NSBundle load]:
> Error loading code /Users/steve/Library/PreferencePanes/Shell
> Environment.prefPane/Contents/MacOS/Shell Environment for
> bundle /Users/steve/Library/PreferencePanes/Shell  
> Environment.prefPane,
> error code 2 (link edit error code 0, error number 0 ())
> 2007-02-28 21:56:58.918 System Preferences[522] [NSPrefPaneBundle
> instantiatePrefPaneObject] (/Users/steve/Library/PreferencePanes/Shell
> Environment.prefPane): principalClass is nil.
>
> I found this earlier thread...
>
> http://mail.python.org/pipermail/pythonmac-sig//2006-October/ 
> 018298.html
>
> ...in which apparently upgrading to a later version of py2app fixed by
> Ronald Oussoren did the trick. However, doing the same hasn't fixed it
> for me, and I'm guessing in the flurry of reinstallations I left
> something out.
>
> I installed Python 2.5 from Python.org on a fresh install of 10.4.8. I
> installed, from source, pyObjC 1.4. I did easy_install [module] 
> ==dev for
> altgraph, bdist_mpkg, macholib, modulegraph and py2app.
>
>>>> print altgraph.__version__, bdist_mpkg.__version__, \
>     macholib.__version__, modulegraph.__version__, py2app.__version__
> 0.6.8 0.4.2 1.2 0.7.1 0.3.6
>
> Now, I did a lot of uninstallation and reinstallation of all of these
> pieces, and it's possible something from an old install is still  
> hanging
> around, since my uninstallation technique consisted of rm -Rf.  
> However,
> I'm not yet ready to try a fresh 10.4.8 installation again without
> someone telling me that's the only way.
>
> At various points in my console I also got the "ImportError: No module
> named linecache", but not on every attempt -- I'm not sure why. I've
> been careful to close and reopen System Preferences between each
> attempt, and I delete build/ and dist/ in the EnvironmentPrefs dir as
> well. If anyone could suggest something, I'd sure appreciate it.
>
> Thanks!
>
> Steve
>
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"Everyone has gotten so hung up on the legality of this they've  
forgotten the ethics." --Paul Saffo, on the H-P Scandal