I am well aware of the many possibilities that exist to allow C code to run python code, and vice versa (Cython, Boost.Python, ...). However, unless I am mistaken, all those approaches merely "call" the relevant python scripts and manage the interactions between the C program and the python script. Therefore, an installation of python is required.
In my situation, I would like a stand-alone solution, where my python code can be somehow compiled and linked to my main C++ program. I had hopes with Cython, as it allowed me to compile my script and create a .so file. However, I don't seem to have been able to "link" that .so file to my C++ program. I attempted the following:
A simple python script containing a function multiply(a,b) which returns a*b ; I created a libmultiply.so file using cython. A short Cpp file which outputs the result of multiply(5,2):
int multiply(int, int);
int main()
{
std::cout << multiply(5,2) << std::endl;
}
I build by doing : g++ test.cpp -L/home/jerome/ -lmultiply
Which gives me the error :
test.cpp:(.text+0x2b): undefined reference to `multiply(int, int)'
collect2: error: ld returned 1 exit status
I am not sure if what I tried makes sense, but hopefully it gives you an idea of what I would like to achieve.
def multiply(a, b): return a * bin Python, the corresponding function in C++ is notint multiply( int a, int b);, but something more likeboost::any multiply( boost::any a, boost::any b );. Except, of course, that it knows nothing aboutboost::any; the actual function would have a signature likePyObject* multiply( PyObject*, PyObject* ). And once you've got all of the support forPyObject, you might as well link inpython.dll`.