On 9 Nov, 2011, at 5:41, Kevin Walzer wrote:

> I've been trying to get one of my Python-Tk applications to integrate with 
> Lion's sandboxing framework (for Mac App Store submission) and have been 
> having difficulty. Based on some feedback I received in the Apple Developer 
> forums, it appears that part of the issue is that the executable stub created 
> by py2app does not link to the Cocoa frameworks.

What kind of problem did you run into? Are those something that can be easily 
reproduced by signing a trivial application?


> A quick run of otool -L confirms this:
> 
> Kevin-Walzers-MacBook:~ kevin$ otool -L 
> /Users/kevin/Programming/quickwho/cbk/QuickWho.app/Contents/MacOS/QuickWho
> /Users/kevin/Programming/quickwho/cbk/QuickWho.app/Contents/MacOS/QuickWho:
>       /usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 
> 832.0.0)
>       /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current 
> version 125.2.10)
> 
> Is there any way I can get this executable linked to 
> /System/Library/Frameworks/Cocoa.framework? I didn't think install_name_tool 
> would do the trick, as that just rewrites links, rather than adding them. A
> 
> Any suggestions are appreciated.

You'll have to rebuild the stubs, and as you already noticed you can do this by 
patching the setup.py in py2app/apptemplate.

BTW. The reason py2app doesn't link with Cocoa is to avoid Cocoa's triggering 
backward compatibility modes. That is, when you link to Cocoa.framework with 
the 10.4 SDK a number of classes will behave slightly different than they do 
when linking to the 10.6 SDK. The precisedetails elude me at the moment though.

It might be useful to add separate stubs for codesigning (possibly with 
additional flags in py2app to trigger codesigning from your setup.py file), or 
even replace the current stubs by ones that link to the Cocoa frameworks.

Ronald
> 
> --Kevin
> 
> -- 
> Kevin Walzer
> Code by Kevin
> http://www.codebykevin.com
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