Question

I have this:

 [[(1, 'a')], [(2, 'b'), (2, 'c')], [(3, 'd'), (3, 'e')]]

I want to make an input to search for a/b/c/d/e and output the index of this letter.

E.g when searching a -> index=0, b and c -> index=1, d and e -> index=2

How is this possible on Python 3.x

Answer 1

You will have to iterate over the list first, then for each list obtained, iterate over it to get tuples.

>>> my_list = [[(1, 'a')], [(2, 'b'), (2, 'c')], [(3, 'd'), (3, 'e')]]
>>> 
>>> def search(val):
        for index, inner_list in enumerate(my_list):
            for nested_tuple in inner_list:
                if val in nested_tuple:
                    return index


>>> search('a')
0
>>> search('c')
1
>>> search('e')
2