from otree.api import ( models, widgets, BaseConstants, BaseSubsession, BaseGroup, BasePlayer, Currency as c, currency_range, ) author = 'Your name here' doc = """ Your app description """ class Constants(BaseConstants): name_in_url = 'surveyapp' players_per_group = None num_rounds = 1 class Subsession(BaseSubsession): pass class Group(BaseGroup): pass class Player(BasePlayer): age = models.IntegerField(label='Please enter your age') gender = models.StringField( label='Please choose your gender', choices=['Male', 'Female', 'Other'] ) is_lefthanded = models.BooleanField(label='Are you left handed?', choices=[ [True, 'Yes'], [False, 'No'], ])