hi all, I'm trying to use boost to write python extensions in C++ under OSX. I'm trying to use the most basic example of a greet function. The extension module is inside a reactor package and it's called _reactor. Unfortunately after a compilation (that successfully finishes) I get the following error:

...

...

from reactor import _reactor Traceback (most recent call last): File "<stdin>", line 1, in <module> File "reactor/__init__.py", line 11, in <module> from reactor import _reactor ImportError: dynamic module does not define init function (init_reactor)

I've searched for this on google and found many answers but none worked. Actually after looking at boost/python.hpp source I think that init_reactor should be there since it's inserted by BOOST_PYTHON_MODULE macro. Do I really have to use boost.jam to compile this small example? (I ask because I tried hard to use it under osx last week and failed miserably, I simply can't use it and documentation is lacking at best). Thanks for information! Here is the full source: #include <boost/python.hpp> using namespace boost::python; char const* greet() { return "hello, world"; } BOOST_PYTHON_MODULE(_reactor) { def("greet", greet); } and here's the setup.py: #!/usr/bin/python import sys, os from os.path import join from distutils.core import setup from distutils.extension import Extension from distutils import sysconfig # break abstraction to set g++ as linker - is there better way? sysconfig._init_posix() compiler = "g++ -ftemplate-depth-50" #compiler += " -fkeep-inline-functions" # for debugging # workaround for bugs in Redhat 7.3 compiler if os.popen("g++ --version").read().strip() == "2.96": compiler += " -fno-inline " sysconfig._config_vars["CC"] = compiler if sys.platform == 'darwin': sysconfig._config_vars["LDSHARED"] = "g++ -undefined dynamic_lookup" else: sysconfig._config_vars["LDSHARED"] = "g++ -shared" ext_modules = [] include_dirs = ["./include", "/usr/local/include", "/opt/local/include/"] if os.environ.has_key("BOOST_INCLUDE"): include_dirs.append(os.environ["BOOST_INCLUDE"]) libraries = [] for libpath in (os.environ.get("LD_LIBRARY_PATH", "").split(":") + ["/usr/lib", "/lib", "/usr/local/lib", "/opt/local/lib/"]): paths = [os.path.join(libpath, libname) for libname in ("libboost_python.so", "libboost_python.dylib")] for path in paths: if os.path.exists(path): libraries.append("boost_python") break if not "boost_python" in libraries: libraries.append("boost_python-gcc-mt") ext_modules.append(Extension("reactor._reactor", [join("reactor", "%s.cpp" % name) for name in ("_reactor",)], libraries=libraries, library_dirs=["/usr/local/lib", "/opt/local/lib"], include_dirs=include_dirs)) setup( name = "reactor", packages=["reactor"], ext_modules=ext_modules, ) -- Valentino Volonghi aka Dialtone Now running MacOS X 10.4 TechBlog: http://vvolonghi.blogspot.com Home Page: http://www.twisted.it