#1 by m_hr3
Hi! Is there any way to set the number of players_per_group in session configs? I have multiple apps in a row and all of them need to have the same number of players_per_group. It's tricky to set this quickly if it's not in session configs but instead in Constants. Is there any way to be able to set group size elsewhere than Constants? Thanks!!
#2 by Chris_oTree
You can set groups in creating_session: def creating_session(subsession: Subsession): session = subsession.session players = subsession.get_players() ppg = session.config['players_per_group'] matrix =  start = 0 for i in range(0, len(players), ppg): matrix.append(players[start:start+ppg]) start += ppg subsession.set_group_matrix(matrix) Or, if you're using group_by_arrival_time, you can define your group_by_arrival_time_method to create a group of any size.