New submission from matham: I have encountered a situation where python crashes when python exits if one imports a c compiled extension followed by a cpp compiled extension (but not if imported in the reverse order). This is on windows with mingw (current using mingw-get install gcc g++ msys-make) and py2.7.9.
This is basically the issue reported at https://mail.python.org/pipermail/python-win32/2013-April/012798.html a while back by someone else, but I'm filing it in bug form so it can't be ignored :D Here's how to replicate it: cplayground.c: #include <Python.h> static PyObject* say_hello(PyObject* self, PyObject* args) { Py_RETURN_NONE; } static PyMethodDef HelloMethods[] = { {"say_hello", say_hello, METH_VARARGS, "Greet somebody."}, {NULL, NULL, 0, NULL} }; PyMODINIT_FUNC initcplayground(void) { (void) Py_InitModule("cplayground", HelloMethods); } cplayground.cpp: #include <Python.h> static PyObject* say_hello(PyObject* self, PyObject* args) { Py_RETURN_NONE; } static PyMethodDef HelloMethods[] = { {"say_hello", say_hello, METH_VARARGS, "Greet somebody."}, {NULL, NULL, 0, NULL} }; PyMODINIT_FUNC initcppplayground(void) { (void) Py_InitModule("cppplayground", HelloMethods); } setup.py: from distutils.core import setup from distutils.extension import Extension import Cython.Compiler.Options from Cython.Distutils import build_ext from os.path import join, sep, dirname, abspath def get_extensions_from_sources(): ext_modules = [] ext_modules.append(Extension('src.cplayground', sources=['src/cplayground.c'])) ext_modules.append(Extension('src.cppplayground', sources=['src/cplayground.cpp'])) return ext_modules setup( name='Playground', version='.1', author='Matthew Einhorn', ext_modules=get_extensions_from_sources(), cmdclass={'build_ext': build_ext}, packages=['src'] ) Here's a demonstration of the issue: G:\Python\libs\Playground\src>python Python 2.7.9 (default, Dec 10 2014, 12:24:55) [MSC v.1500 32 bit (Intel)] on win 32 Type "help", "copyright", "credits" or "license" for more information. >>> import cplayground >>> import cppplayground >>> exit() This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information. G:\Python\libs\Playground\src>python Python 2.7.9 (default, Dec 10 2014, 12:24:55) [MSC v.1500 32 bit (Intel)] on win 32 Type "help", "copyright", "credits" or "license" for more information. >>> import cppplayground >>> import cplayground >>> exit() Here's my config: G:\Python\libs\Playground\src>gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=g:/python/env/test/py279_x86/mingw/bin/../libexec/gcc/mingw3 2/4.8.1/lto-wrapper.exe Target: mingw32 Configured with: ../gcc-4.8.1/configure --prefix=/mingw --host=mingw32 --build=m ingw32 --without-pic --enable-shared --enable-static --with-gnu-ld --enable-lto --enable-libssp --disable-multilib --enable-languages=c,c++,fortran,objc,obj-c++ ,ada --disable-sjlj-exceptions --with-dwarf2 --disable-win32-registry --enable-l ibstdcxx-debug --enable-version-specific-runtime-libs --with-gmp=/usr/src/pkg/gm p-5.1.2-1-mingw32-src/bld --with-mpc=/usr/src/pkg/mpc-1.0.1-1-mingw32-src/bld -- with-mpfr= --with-system-zlib --with-gnu-as --enable-decimal-float=yes --enable- libgomp --enable-threads --with-libiconv-prefix=/mingw32 --with-libintl-prefix=/ mingw --disable-bootstrap LDFLAGS=-s CFLAGS=-D_USE_32BIT_TIME_T Thread model: win32 gcc version 4.8.1 (GCC) G:\Python\libs\Playground\src>g++ -v Using built-in specs. COLLECT_GCC=g++ COLLECT_LTO_WRAPPER=g:/python/env/test/py279_x86/mingw/bin/../libexec/gcc/mingw3 2/4.8.1/lto-wrapper.exe Target: mingw32 Configured with: ../gcc-4.8.1/configure --prefix=/mingw --host=mingw32 --build=m ingw32 --without-pic --enable-shared --enable-static --with-gnu-ld --enable-lto --enable-libssp --disable-multilib --enable-languages=c,c++,fortran,objc,obj-c++ ,ada --disable-sjlj-exceptions --with-dwarf2 --disable-win32-registry --enable-l ibstdcxx-debug --enable-version-specific-runtime-libs --with-gmp=/usr/src/pkg/gm p-5.1.2-1-mingw32-src/bld --with-mpc=/usr/src/pkg/mpc-1.0.1-1-mingw32-src/bld -- with-mpfr= --with-system-zlib --with-gnu-as --enable-decimal-float=yes --enable- libgomp --enable-threads --with-libiconv-prefix=/mingw32 --with-libintl-prefix=/ mingw --disable-bootstrap LDFLAGS=-s CFLAGS=-D_USE_32BIT_TIME_T Thread model: win32 gcc version 4.8.1 (GCC) ---------- components: Extension Modules, Windows messages: 238981 nosy: matham, steve.dower, tim.golden, zach.ware priority: normal severity: normal status: open title: Python crashes upon exit if importing g++ compiled mod after importing gcc compiled mod type: crash versions: Python 2.7 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue23743> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
