Stopping embedded Python

Question

I\'m embedding Python interpreter to a C program. However, it might happen that while running some python script via PyRun_SimpleString() will run into infinite

Answer 1

You can use Py_AddPendingCall() to add a function raising exception to be called on next check interval (see docs on sys.setcheckinterval() for more info). Here is an example with Py_Exit() call (which does works for me, but probably is not what you need), replace it with Py_Finalize() or one of PyErr_Set*():

int quit(void *) {
    Py_Exit(0);
}


PyGILState_STATE state = PyGILState_Ensure();
Py_AddPendingCall(&quit, NULL);
PyGILState_Release(state);

This should be enough for any pure-python code. But note, that some C functions can run for a while as a single operation (there was an example with long running regexp search, but I'm not sure it's still relevant).