from otree.api import ( models, widgets, BaseConstants, BaseSubsession, BaseGroup, BasePlayer, Currency as c, currency_range ) doc = '' class Constants(BaseConstants): name_in_url = 'personal_details' players_per_group = None num_rounds = 1 class Subsession(BaseSubsession): pass class Group(BaseGroup): pass class Player(BasePlayer): gender = models.StringField(choices=[['Male', 'Male'], ['Female', 'Female']], label='Gender', widget=widgets.RadioSelectHorizontal) age = models.IntegerField(label='Age')