35     parentNode = None  variable in Node
89         if newChild.parentNode is not None:
90             newChild.parentNode.removeChild(newChild)
109             newChild.parentNode = self
123         if node.parentNode is not None:
124             node.parentNode.removeChild(node)
139         if newChild.parentNode is not None:
140             newChild.parentNode.removeChild(newChild)
146         newChild.parentNode = self
147         oldChild.parentNode = None
174         oldChild.parentNode = None
262         self.parentNode = self.ownerDocument = None
290         node = node.parentNode
322     parentNode = None  variable in DocumentFragment
1029         if self.parentNode and self in self.parentNode.childNodes:
1031                 self.parentNode.appendChild(newText)
1033                 self.parentNode.insertBefore(newText, next)
1063         parent = self.parentNode
1110     c = node.parentNode
1114         c = c.parentNode
1118     c = node.parentNode
1122         c = c.parentNode
1362         if doctype and doctype.parentNode is not None:
1400             doctype.parentNode = doctype.ownerDocument = doc
1483     parentNode = None  variable in Document
1543         if node.parentNode is not None:
1547             node.parentNode.removeChild(node)
1561         oldChild.parentNode = None
1594             childclone.parentNode = clone