130     def replaceChild(self, newChild, oldChild):  argument
132             refChild = oldChild.nextSibling
133             self.removeChild(oldChild)
138         if newChild is oldChild:
143             index = self.childNodes.index(oldChild)
148         oldChild.parentNode = None
150             or oldChild.nodeType in _nodeTypes_with_children):
152         newChild.nextSibling = oldChild.nextSibling
153         newChild.previousSibling = oldChild.previousSibling
154         oldChild.nextSibling = None
155         oldChild.previousSibling = None
160         return oldChild
162     def removeChild(self, oldChild):  argument
164             self.childNodes.remove(oldChild)
167         if oldChild.nextSibling is not None:
168             oldChild.nextSibling.previousSibling = oldChild.previousSibling
169         if oldChild.previousSibling is not None:
170             oldChild.previousSibling.nextSibling = oldChild.nextSibling
171         oldChild.nextSibling = oldChild.previousSibling = None
172         if oldChild.nodeType in _nodeTypes_with_children:
175         oldChild.parentNode = None
176         return oldChild
952     def removeChild(self, oldChild):  argument
960     def replaceChild(self, newChild, oldChild):  argument
1373     def removeChild(self, oldChild):  argument
1377     def replaceChild(self, newChild, oldChild):  argument
1602     def removeChild(self, oldChild):  argument
1604             self.childNodes.remove(oldChild)
1607         oldChild.nextSibling = oldChild.previousSibling = None
1608         oldChild.parentNode = None
1609         if self.documentElement is oldChild:
1612         return oldChild