Message 369261 - Python tracker
Ok, I think I see. Is there a concern that removing the cpython/ prefix might lead to the wrong initconfig.h being included?
So your proposal is all includes in the root will do
#include "cpython/cpython_foo.h"
And any includes done in the cpython dir will be
#include "cpython_foo.h"
Currently there's only one file in the cpython dir that includes another, which would explain why this has never come up before.