Mailman 3 August 2000 - Cplusplus-sig

5.0b : CXX.example throws exception.
by Joe Van Andel Sept. 6, 2000

Sept. 6, 2000

Using Python 1.52, gcc 2.95.2 on Redhat Linux 6.2 (As a minor correction, to run the example, I had to add "libraries=['stdc++']" to Demo/setup.py, in the invocation of 'Extension()' Even though I had linked Python with c++, 'cerr' was undefined until I linked the extension with std+++.) When I try to run the example (import CXX.example), it throws an exception: #0 0x80c3f64 in __throw () #1 0x40422890 in Py::Object::validate (this=0xbfffdc50) at /local/include/python1.5/CXX/Exception.hxx:19 #2 0x404031fc in Py::ExtensionModuleBase::module (this=0x811a548) at /local/include/python1.5/CXX/Objects.hxx:123 #3 0x40403525 in Py::ExtensionModuleBase::moduleDictionary (this=0x811a548) at /local/etc/CXX/cxx_extensions.cxx:108 #4 0x40424ef8 in Py::ExtensionModule<example_module>::initialize (this=0x811a548, module_doc=0x4043f820 "documentation for the example module") at /local/include/python1.5/CXX/Extensions.hxx:191 #5 0x403de46d in initexample () at example.cxx:266 #6 0x805f540 in _PyImport_LoadDynamicModule (name=0xbfffe754 "CXX.example", pathname=0xbfffe2c4 "/usr/local/lib/python1.5/site-packages/CXX/example.so", fp=0x8112828) at ./importdl.c:851 Any idea how to fix this? -- Joe VanAndel National Center for Atmospheric Research http://www.atd.ucar.edu/~vanandel/ Internet: vanandel(a)ucar.edu

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--with-cxx patch to build process
by Fred L. Drake, Jr. Aug. 31, 2000

Aug. 31, 2000

One of the old bugs (filed in Jitterbug) offered a patch from Geoff Furnish to add a --with-cxx option to Python's configuration script for Unix. The bug report is old, however. What is the current state of this work? My understanding is that the biggest issue with this work is that Python's main() needs to be compiled with C++ to ensure that constructors of C++ objects are properly called when loaded with dynamic extensions, so I presume the basic requirement hasn't changed. If anyone has a version of this patch that has been tested with the CVS version of Python and recent CXX versions, I'd appreciate an update to the bug report: http://sourceforge.net/bugs/?func=detailbug&bug_id=110840&group_id=5470 I'll be unavailable to check it out until after the beta is released, but would like to get this in if I can. Thanks! -Fred -- Fred L. Drake, Jr. <fdrake at beopen.com> BeOpen PythonLabs Team Member

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How to get CXX-5.0
by Xavier Warin Aug. 28, 2000

Aug. 28, 2000

Hi ! I have a problem to get CXX-5.0. I have a proxy and i can't use CVS to get the new version. Does anybody know how to get .tgz version ? Thank You very much

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debug assertion fails when exiting python
by Martin Lehotsky Aug. 21, 2000

Aug. 21, 2000

Hello, Had anybody have similar problem or does anybodoy know the solution ? When I wrap classes of a library (using swig), I can make their instance in python and use it without any problem. The library's code is in another dll file. But when I try to write my own classes inherited from library`s classes and call them from python, I get this windows error message "debug assertion fails " in dbgheap.c by deleting an object, even if I don't instantiate my classes (code of my classes was in third dll) thanks a lot Martin Lehotsky

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