docs: def getColumnByName(self, name):
  		"""
  		Retrieve and return the Column child element named name.
  		The comparison is done using CompareColumnNames().  Raises
  		KeyError if this table has no column by that name.
  
  		Example:
  
  		>>> import lsctables
  		>>> tbl = lsctables.New(lsctables.SnglInspiralTable)
  		>>> col = tbl.getColumnByName("mass1")
  		"""
  		try:
  			col, = getColumnsByName(self, name)
  		except ValueError:
  			# did not find exactly 1 matching child
  			raise KeyError(name)
  		return col