Depends how you want to sort, or how accessible you want your data to be. Easiest would be something like: {user1-name:user1-object, user2-name:user2-object..

Depends how you want to sort, or how accessible you want your data to be. Easiest would be something like: {user1-name:user1-object, user2-name:user2-object...} You could use a list but look-up is O(1) in dictionaries compared to O(n) in lists. And if you then want to sort by any value of the user-object, you just hand the relevant gets-method as sorting-key, e.g. sorted(dictionary, key=user.getAddress())