[C++-sig] Re: please help with simple program crashing

Jeffrey Holle jeff.holle at verizon.net
Thu Jul 1 14:09:52 CEST 2004

Calling Py_Finalize shuts done the python interpreter.
I suspect that is why you were told its not compatiable to boost.python, 
since it uses this resource.

Drew Ferraro wrote:
> hi dave,
> thanks for your reply! this might sound stupid, but could you tell me
> what i should do then to have them both use the same standard library?
> im using visual studio .net 2003 if that matters. also, what is the
> alternative to Py_Finalize, and why is it incompatible but the other
> Py_XXX function are not ? thanks for any help! ps, i have boost
> included because i was just using it to do some other stuff (i was
> actually able to call a C++ function through the Py_SimpleString()
> function...)
> On Thu, 01 Jul 2004 09:52:59 -0400, David Abrahams
> <dave at boost-consulting.com> wrote:
>>Drew Ferraro <gfilla at gmail.com> writes:
>>>ive recently trying to add a scripting system to a game i am making..
>>>anyway, ive started to learn python and am trying to figure out how to
>>>embed it in my game. i have gotten a C++ function to work from inside
>>>C++ but called from python via PyRun_SimpleString(),,, i can send
>>>commands directly to the intepreter with that function, but im having
>>>a problem
>>> with PyRun_SimpleFile(). im trying to execute a python script with
>>>this function, but its crashing when it gets to this line:
>>> PyRun_SimpleFile(fp,"test.py");
>>>i cant figure out what im doing wrong. here is the source. any help is
>>>greatly appreciated!!
>>One likely possibility is that your Python was built with a different
>>C/C++ standard library than your program, so they have different
>>ideas of what a FILE is supposed to be.  Also, Boost.Python is
>>incompatible with Py_Finalize... though it's not clear why you're
>>linking with Boost.Python anyway, since you're not using it.
>>>#include <boost/python.hpp>
>>>#include <iostream>
>>>#include <stdio.h>
>>>using namespace std;
>>>using namespace boost::python;
>>>#ifdef _WIN32
>>>#pragma comment(lib,"boost_python.lib");
>>>int main()
>>>   Py_Initialize();
>>>   FILE *fp = NULL;
>>>   fp = fopen("test.py", "r");
>>>   if(fp == NULL)
>>>        return 1;
>>>   PyRun_SimpleFile(fp,"test.py");
>>>   Py_Finalize();
>>>   system("PAUSE");
>>>   return 0;
>>>thanks for any help! also, i tried not opening the file myself, and
>>>just sending PR_SF() a NULL FILE*... it didnt crash! instead, in the
>>>console it said there was a syntax error and printed out some garbage
>>>characters... i dont think theres a syntax error, "text.py" entire
>>>file just says print "hello world"
>>>thanks again!
>>Dave Abrahams
>>Boost Consulting
>>C++-sig mailing list
>>C++-sig at python.org

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