Some help with Dictionaries

[DeaD_EyE]

When you mean expensive, you mean from time & resources right?

A dict consumes more memory as a tuple or list.
Creating a dict is slow. To find a key in a dict is very fast independent of the dict size.

You've to think about this problem, if the size is big enough, but not for 4 elements.

This overhead is important if you work later with data where you have data shaped like 1.000.000 x 10.