.

go/zodb/zodbpy.go

@@ -32,11 +32,13 @@ type IPyPersistent interface {
 	//PyClass() pickle.Class // python class of this object
 //	PyState() interface{}  // object state. python passes this to pyclass.__new__().__setstate__()
 
+/*
 	// IPyPersistent must be stateful for persistency to work
 	// XXX try to move out of IPyPersistent? Rationale: we do not want e.g. PySetState to
 	// be available to user who holds IPyPersistent interface: it is confusing to have
 	// both PActivate and PySetState at the same time.
 	PyStateful
+*/
 }
 
 // PyPersistent is common base implementation for in-RAM representation of ZODB Python objects.
@@ -65,8 +67,10 @@ type PyStateful interface {
 //
 // this should be always safe because we always create pyObjects via
 // newGhost which passes IPyPersistent as instance to IPersistent.	XXX no longer true
-func (pyobj *PyPersistent) pyinstance() IPyPersistent {
-	return pyobj.instance.(IPyPersistent)
+//func (pyobj *PyPersistent) pyinstance() IPyPersistent {
+func (pyobj *PyPersistent) pyinstance() interface {IPyPersistent; Ghostable; PyStateful} {
+	//return pyobj.instance.(IPyPersistent)
+	return pyobj.instance.(interface {IPyPersistent; Ghostable; PyStateful})
 }
 
 func (pyobj *PyPersistent) SetState(state *mem.Buf) error {