def get_bc(name, num_iterations=3): g = Github(ACCESS_TOKEN) user = g.get_user(name) g = nx.DiGraph() g.add_node(user.login + 'T') for i in range(num_iterations): add_followers(g) bc = sorted(nx.betweenness_centrality(g).items(), key=itemgetter(1), reverse=True) # need to change return bc[:10]