Python: sorting of the "table" $list of lists$

There is list like "list of the lists": $$[1,2,3$$ , $$4,5,6$$ , $$7,8,9$$ ,[11,

12,13], $$14,15,16$$ ]
We can sort it by follow script:

import operator
...
myList.sort$key=operator.itemgetter(3$)

 

If we can see cortege of number of "columns" in itemgetter $for example: (0,1$), there is sorting order in this cortege.