How do you extend python with C++?

Question

I\'ve successfully extended python with C, thanks to this handy skeleton module. But I can\'t find one for C++, and I have circular dependency trouble when trying to fix the err

Answer 1

use extern C to wrap all the function names that get called from python. Because C++ compilers use something called 'name mangling' (necessary for dealing with overloading), python can't read c++ libraries. But extern C will solve your problems. Do it like this:

// most of your code can go whereever
void cpp_function() {}
extern "C" {
   // all functions that python calls directly must go in here
   void python_function() {}
}

Make extra sure you put every function python needs inside the extern block. You can still use c++ features inside the functions, it's just that the names will be exported without 'name mangling'.