How can i creat a 2D array that the user can put its informations?

Answer 1

A list can contain any type of object, including other lists. So a 2d 'array' (we still call them lists in Python) would look like this:

two_dim = [ [1, 2], [3, 4] ]

You can initially make the inner lists empty too.
two_dim_empty = [ [], [] ]

To reference the first element in the second sublist:
two_dim[1][0] #3

To add an element to the first sublist:
two_dim[0].append(5)

the sublists do not need to be the same size, it is in fact fully dynamic

and finally you can append a value that you get from the user by the input() statement