def _broadcast(self, e):
if self._children:
chcopy = self._children[:]
for c in chcopy:
c._broadcast(e)
InteractiveObject._broadcast(self, e)
def _broadcast(self, e):
if self._children:
chcopy = self._children[:]
for c in chcopy:
c._broadcast(e)
InteractiveObject._broadcast(self, e)
