CODEWITHSUNDEEP
pythonmacosbuildcross-compilingdistutils
user979146
user979146

Reputation:

Building binary python distributions for multiple OS X versions

I am attempting to build a python application with binary modules on OS X. I want to build versions for Snow Leopard and Leopard from Lion. I have XCode 4 installed with the 10.5 and 10.6 sdks and have been attempting to build using the MACOSX_DEPLOYMENT_TARGET flag set to 10.6. I receive an error from distutils complaining that python was built with a different deployment target.

I tried building a separate python binary with the deployment target set to 10.6 and then used virtualenv to try to build from that, but virtualenv expected a lib directory under the base env directory that was not there.

I am a total newb at developing on Mac and not even sure if what I want to do is possible. Am I going to have to break down and have someone still running Snow Leopard build my distributions?

I really appreciate any assistance.

Upvotes: 3

Views: 1981

Answers (2)

Orbitus007
Orbitus007

Reputation: 696

I found the solution, go into your /System/Library/Frameworks/Python.framework/Versions/2.7/lib/distutils/sysconfig.py

Goto line 408 that says "raise DistutilsPlatformError" and add a '#' to comment out that line of code... This will "unleash the python"

You are basically telling python "don't worry its not 10.7, I know" there could be some crashes as a result but I think otherwise. My very complex python applicaiton now compiles on MacOSX 10.8 with no troubles and it seems to do the job, QA still has to test it though.

Upvotes: 1

Ned Deily
Ned Deily

Reputation: 85045

The system Pythons shipped by Apple in OS X 10.7 are built for 10.7 only. The simplest solution is to download the most recent Python 2.7 or 3.2 64-bit/32-bit installer from python.org and use it since it is a universal binary that will run on either 10.6 or 10.7. If you are making an app bundle, you'll need to install a copy of py2app for it and any other 3rd-party packages like Distribute (aka easy_install) or pip.

Upvotes: 1

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