I'm getting some coding done and exploring Python... here is some sample code that I'm fiddling around with.. from __future__ import division # list of users users = [ { "id": 0, "name": "Alex" }, { "id": 1, "name": "Brian" }, { "id": 2, "name": "Cathy" }, { "id": 3, "name": "David" }, { "id": 4, "name": "Erica" }, { "id": 5, "name": "Frank" }, { "id": 6, "name": "Gary" }, { "id": 7, "name": "Hank" }, { "id": 8, "name": "Indigo" }, { "id": 9, "name": "Jason" } ] # relationship of friendship between users friendships = [(0,1), (0,2), (1,2), (1,3), (2,3), (3,4), (4,5), (5,6), (5,7), (6,8), (7,8), (8,9)] # initialize empty array for user in users: user["friends...