129     def replaceChild(self, newChild, oldChild):  argument
131             refChild = oldChild.nextSibling
132             self.removeChild(oldChild)
137         if newChild is oldChild:
142             index = self.childNodes.index(oldChild)
147         oldChild.parentNode = None
149             or oldChild.nodeType in _nodeTypes_with_children):
151         newChild.nextSibling = oldChild.nextSibling
152         newChild.previousSibling = oldChild.previousSibling
153         oldChild.nextSibling = None
154         oldChild.previousSibling = None
159         return oldChild
161     def removeChild(self, oldChild):  argument
163             self.childNodes.remove(oldChild)
166         if oldChild.nextSibling is not None:
167             oldChild.nextSibling.previousSibling = oldChild.previousSibling
168         if oldChild.previousSibling is not None:
169             oldChild.previousSibling.nextSibling = oldChild.nextSibling
170         oldChild.nextSibling = oldChild.previousSibling = None
171         if oldChild.nodeType in _nodeTypes_with_children:
174         oldChild.parentNode = None
175         return oldChild
894     def removeChild(self, oldChild):  argument
902     def replaceChild(self, newChild, oldChild):  argument
1328     def removeChild(self, oldChild):  argument
1332     def replaceChild(self, newChild, oldChild):  argument
1555     def removeChild(self, oldChild):  argument
1557             self.childNodes.remove(oldChild)
1560         oldChild.nextSibling = oldChild.previousSibling = None
1561         oldChild.parentNode = None
1562         if self.documentElement is oldChild:
1565         return oldChild