[Pythonmac-SIG] problems with boost.python on OS X

[stephan nies]

Thank you for your reply Ronald,
I might try the distutils, too.

Thanks,
Stephan



On 2/6/07, Ronald Oussoren <ronaldoussoren at mac.com> wrote:
>
> On 6 Feb, 2007, at 17:55, stephan nies wrote:
>
> > Hello,
> >
> > has anyone used boost.python on OSX
> > and can help me or point me
> > to "hello world"-style example of a
> > c++ - extension in boost.python
> > that works on OSX.
> >
> > I have used boost.python on linux and
> > am porting the app from linux to osx.
> > Since the app uses a
> > boost.python - extension module
> > its essential for me to get the extension
> > working.
> >
> > At the Moment everything compiles
> > but i cant import the extension in python.
> >
> > I already posted on C++-sig but didn't get response so far.
> > http://mail.python.org/pipermail/c++-sig/2007-February/011918.html
> >
> >
> > My Situation:
> >
> > OS:        PPC Mac OS X 10.4.8
> > Python:   python-2.4.4-macosx2006-10-18.dmg
> >              from http://pythonmac.org/packages/py24-fat/dmg/
> >              (this is a framework build)
> > Boost:    1.33.1 build from source (./configure && make)
> >
> > i am building my extension by invoking:
> >
> > g++ -dynamic myextension.cpp
> > -I/Library/Frameworks/Python.framework/Headers
> > -I/System/Library/Frameworks/GLUT.framework/Headers -I/usr/include
> > -I/Users/nies/src/boost_1_33_1 -c -o myextension.o
> >
> > and
> >
> > g++ -v -dynamiclib -framework Python -framework OpenGL -framework GLUT
> > -L/Users/nies/src/boost_1_33_1/bin/boost/libs/python/build/
> > libboost_python.dylib/darwin/release/shared-linkable-true/
> > -lboost_python-1_33_1 myextension.o -o myextension.dylib
> >
> > this compiles and when i try to import the extension in pythonw:
> >
> > Python 2.4.4 (#1, Oct 18 2006, 10:34:39)
> > [GCC 4.0.1 (Apple Computer, Inc. build 5341)] on darwin
> > Type "help", "copyright", "credits" or "license" for more information.
> >>>> import myextension
> > Traceback (most recent call last):
> >  File "<stdin>", line 1, in ?
> > ImportError: No module named myextension
> >
> > as far as i understand this is because python searches for
> > .so files.  when i symbolic-link  myextension.so -> myextension.dylib
> > and than try to import:
> >
> > Python 2.4.4 (#1, Oct 18 2006, 10:34:39)
> > [GCC 4.0.1 (Apple Computer, Inc. build 5341)] on darwin
> > Type "help", "copyright", "credits" or "license" for more information.
> >>>> import myextension
> > Traceback (most recent call last):
> >  File "<stdin>", line 1, in ?
> > ImportError: Inappropriate file type for dynamic loading
> >
> > so what am i doing wrong here? I would really
> > appreciate some hints at this point.
>
>
> Why not use distutils for building the extension? Distutils knows how
> to build extensions correctly on a multitude of platforms.
>
> Ronald
>
>