newbie question: retrieving values of variables through C API

[joshusdog]

I've got an application that embeds the Python interpreter. I have the
following command in my code:

PyRun_SimpleString("a = \"hello\"");

My question is, what is the C API function call for retrieving the
value of the variable "a"?

 

[Gabriel Genellina]

I've got an application that embeds the Python interpreter. I have the
following command in my code:

PyRun_SimpleString("a = \"hello\"");

My question is, what is the C API function call for retrieving the
value of the variable "a"?

The code is run in the context of the __main__ module. So you could do
something like this:

PyObject *m, *d, *v, *value;
m = PyImport_AddModule("__main__");
if (m == NULL)
return -1;
d = PyModule_GetDict(m);
value = PyDict_GetItemString(d, "a")

(The code above is mostly copied from PyRun_SimpleStringFlags)
You may find other variants of PyRun_XXX more convenient to use.