> That would probably mean that proxy objects could not be inherited by *any* sub-process. 

If I only avoid after-fork incref, I must be very careful at not deleting them in any subprocess, as this would cause a decref which was not compensated by the after-fork incref at the beginning of the subprocess. 

But as long as I never delete such objects in any subprocess, this should make no difference... Or will they get deleted whenever any of the subprocesses ends?