[python] 'gcc-4.2' failed with exit status

Solution:
add the following before the python command
ARCHFLAGS="-arch i386 -arch x86_64"

example:
ARCHFLAGS="-arch i386 -arch x86_64" python setup.py build

The Error occurs because the compiler tries to make the app for ppc architecture but after Xcode 4 the ppc compiler has been removed.

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