from otree.api import ( models, widgets, BaseConstants, BaseSubsession, BaseGroup, BasePlayer, Currency as c, currency_range, ) import random author = 'Your name here' doc = """ Your app description """ class Constants(BaseConstants): name_in_url = 'TG1_player5' players_per_group = None num_rounds = 1 class Subsession(BaseSubsession): def creating_session(self): players = self.get_players() first_treatment = random.randint(1, 2) for p in players: if p.id_in_group == 1: p.treatment_group = first_treatment else: p.treatment_group = 3 - first_treatment class Group(BaseGroup): pass class Player(BasePlayer): treatment_group = models.IntegerField() choices = models.IntegerField( choices = [ [1, 'Lottery 1'], [2, 'Lottery 2'], ], widget=widgets.RadioSelect ) lottery_outcome = models.CurrencyField() probability_of_the_rare_event = models.IntegerField() X = models.CurrencyField()