[C++-sig] boost::python embedding error - runtime - Mac OS X - 1.38

[Igor Karpov]

BTW, this seems specific to 1.38.0 version of Boost - I just
downgraded to 1.34.1 on the same mac, and got the expected "Hello
World from boost::python!".

--Igor.

On Thu, Mar 5, 2009 at 12:47 PM, Igor Karpov <ikarpov at gmail.com> wrote:
> Hi,
>
> I am trying to run the following program:
>
> #include <iostream>
> #include <Python.h>
>
> #include <boost/python.hpp>
> using namespace boost::python;
>
> using namespace std;
>
> int main(int argc, char** argv) {
>
>    { // Using Python/C
>        Py_Initialize();
>        PyObject* main_module = PyImport_ImportModule("__main__");
>        PyObject* globals = PyEval_GetGlobals();
>        PyObject* locals = PyEval_GetLocals();
>        PyRun_SimpleString("print 'Hello World, from Python/C!'\n");
>        Py_Finalize();
>    }
>
>    { // Using boost::python
>        Py_Initialize();
>        object main_module = import("__main__");
>        object main_namespace = main_module.attr("__dict__");
>        try {
>            object ignored = exec("print 'Hello World, from boost::python!'\n",
>                                  main_namespace);
>            Py_Finalize();
>        } catch (error_already_set const& e) {
>            PyErr_Print();
>            return 1;
>        }
>    }
>
>    return 0;
> }
>
> on Linux (both x86 and x86_64), with Ubuntu's default version of Boost
> (1.34.1) installed, I am able to do so as expected:
>
> $ ./embed
> Hello World, from Python/C!
> Hello World, from boost::python!
>
> on Mac OS X, I get a runtime error:
> $ ./embed
> Hello World, from Python/C!
> Bus Error
>
> Running with gdb, this is the stack trace:
>
> Hello World, from Python/C!
>
> Program received signal EXC_BAD_ACCESS, Could not access memory.
> Reason: KERN_PROTECTION_FAILURE at address: 0x00000000
> 0x00000000 in ?? ()
> (gdb) where
> #0  0x00000000 in ?? ()
> #1  0x00bb618f in PyEval_GetGlobals ()
> #2  0x00bce0dd in PyImport_Import ()
> #3  0x00bce2b0 in PyImport_ImportModule ()
> #4  0x008127d4 in boost::python::import (name=@0xbffff4a8) at
> libs/python/src/import.cpp:20
> #5  0x00004446 in main (argc=1, argv=0xbffff510) at embed.cc:22
>
> For this Mac, boost version is latest (1.38) and python version is:
>
> Python 2.5.4 (r254:67917, Dec 23 2008, 14:57:27)
> [GCC 4.0.1 (Apple Computer, Inc. build 5363)] on darwin
>
> Is this a bug? I attached the source and the cmake file I am using to
> build, for convenience.
>
> Thanks,
>
> --Igor.
>