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

[stephan nies]

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.

Thanks,
Stephan