[Pythonmac-SIG] CPython on Mac OSX

Ronald Oussoren ronaldoussoren at mac.com
Thu Dec 14 11:31:17 CET 2006

The best way to do this is using distutils, which is the standard  
python package for building and installing python packages.

The document at <http://docs.python.org/ext/building.html> should get  
you going.

To quote from that, create a setup.py containing:

from distutils.core import setup, Extension

module1 = Extension('demo',
                     sources = ['mandel.c'])

setup (name = 'MandelPackage',
        version = '1.0',
        description = 'This is a demo package',
        ext_modules = [module1])

If you want to install the extension: 'python setup.py install'. This  
will install it into the site-packages directory.

If you create a setup.cfg containing the text below you can use  
'python setup.py build' to build the extension in the current directory

# setup.cfg
inplace = 1
# end setup.cfg


On Dec 12, 2006, at 10:19 PM, Gen Kazama wrote:

> Hi I'm running python 2.3 on 10.4.  i made an application using a C  
> backend and a python frontend.
> This is a school project and although it works perfectly on the  
> school computers, i have trouble compiling the C code correctly on  
> the mac to make it into a python module (maybe this is because the  
> school computers used python 2.4-ie, an updated version of Python.h).
> Anyway here is how I compile it at school:
>         gcc -I /usr/include/python2.4 -c mandel.c
>         gcc -shared mandel.o -o mandel.so
> which works with no flaws.  then , I try compiling it on my mac:
>         gcc -I /usr/include/python2.3 -c mandel.c
>         gcc mandel.o -o mandel.so
> (note: -shared wasn't found on my mac for some reason). I get the  
> following errors:
> /usr/bin/ld: Undefined symbols:
> _main
> _PyArg_ParseTuple
> _PyInt_FromLong
> _PyString_FromString
> _PyTuple_New
> _PyTuple_SetItem
> _Py_InitModule4
> collect2: ld returned 1 exit status
> If anyone could tell me how to compile this C code into a python  
> module on my mac, i would greatly appreciate it.  thanks! 
> _______________________________________________
> Pythonmac-SIG maillist  -  Pythonmac-SIG at python.org
> http://mail.python.org/mailman/listinfo/pythonmac-sig

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