[Pythonmac-SIG] py2app unable to find cprocessors.so

[Ronald Oussoren]

On 14 Sep, 2012, at 12:26, Paul Wiseman <poalman at gmail.com> wrote:
> 
> Ah, yea I am indeed using the VERSIONER variable, I got myself confused because I was checking this,
> 
> pauls-mac-pro:Python paul$ type python
> python is hashed (/Library/Frameworks/Python.framework/Versions/2.7/bin/python)
> paul$ file /Library/Frameworks/Python.framework/Versions/2.7/bin/python
> /Library/Frameworks/Python.framework/Versions/2.7/bin/python: Mach-O universal binary with 1 architecture
> /Library/Frameworks/Python.framework/Versions/2.7/bin/python (for architecture i386):	Mach-O executable i386
> 
> which I don't quite understand, but.
> 
> paul$ file $(whereis python)
> /usr/bin/python: Mach-O universal binary with 3 architectures
> /usr/bin/python (for architecture x86_64):	Mach-O 64-bit executable x86_64
> /usr/bin/python (for architecture i386):	Mach-O executable i386
> /usr/bin/python (for architecture ppc7400):	Mach-O executable ppc
> 
> would explain it, although I'm a little confused which python I'm actually running when I type python, I guess it must be the later (which is /usr/bin/python)

You could try: python -c 'import sys; print(sys.executable)'

> 
> By the way, thank you all so much for your help with this!! I think I'm getting pretty close now I think :)
> 
> So the final question (hopefully ;) ) is how can I use the later python (I want i386 and ppc support, so don't want to use the former) but default it to not use x86_64?

I don't have support for selecting a different bootstrap executable right now.

A crude hack: look for the installed py2app package, and in particular the directory "py2app/apptemplate/prebuilt". Then copy "main-fat" to "main-3way".  This replaces the executable that py2app puts into the application bundle by a version that only supports the PPC and i386 architectures.

A slightly less hack way: the lipo command-line tool can be used to strip architectures from a binary, you could run that after running py2app.

Ronald
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