"Adds reference counting to the returned python object which is assumed to be a new reference. An error is thrown if the object is f. This word is used to wrap Python functions that return new references."
"Adds reference counting to the returned python object which is assumed to be a borrowed reference. An error is thrown if the object is f. This word is used to wrap Python functions that return borrowed references."
"Unsteals a reference. Used by wrappers that call Python functions that steal references. Functions such as " { $link PyTuple_SetItem } " takes ownership of the references passed in and relieves Factor of its burden to decrement them." } ;