code: def replaceelement(oldelem, newelem):
      '''
      Given a parent element, replace oldelem with newelem.
      '''
      parent = oldelem.getparent()
      if parent is not None:
          size = len(parent.getchildren())
          for x in range(0, size):
              if parent.getchildren()[x] == oldelem:
                  parent.remove(oldelem)
                  parent.insert(x, newelemf replaceelement(oldelem, newelem):
      '''
      Given a parent element, replace oldelem with newelem.
      '''
      parent = oldelem.getparent()
      if parent is not None:
          size = len(parent.getchildren())
          for x in range(0, size):
              if parent.getchildren()[x] == oldelem:
                  parent.remove(oldelem)
                  parent.insert(x, newelem)
docs: Given a parent element, replace oldelem with newelem.