Is There A Python Api Function To Get Value By Its Name In C++?

I want to do something like this: Py_Initialize(); PyRun_SimpleString('d = 0.97'); float a = ? // how to get value of d by its name? Py_Finalize(); Is there a simple way to do thi

Solution 1:

PyRun_SimpleString will not help AFAIK.

Use PyRun_String instead of PyRun_SimpleString which returns an object a pointer to a PyObject. But this would not be very (simple) as mentioned by your question

Solution 2:

As said tdelaney, "d ends up in the __main__ module". So the best solution I find is

Py_Initialize();
PyRun_SimpleString("d = 0.97");
PyObject *mainModule = PyImport_AddModule("__main__");
PyObject *var = PyObject_GetAttrString(mainModule, "d");
float a = PyFloat_AsDouble(var);
Py_Finalize();

Not as simple as I expected, but acceptable and it works.