using index() on multidimensional lists

Question

For a one dimensional list, the index of an item is found as follows:

 a_list = [\'a\', \'b\', \'new\', \'mpilgrim\', \'new\']
 a_list.index(\'mpilgrim\')
         


        

Answer 1

A multidimensional list is simply a list with more lists inside of it. So its indices would be lists themselves.

a = [[1, 2, 3], [2, 3, 4], [3, 4, 5]]
print a.index([2, 3, 4])
# prints 1