from otree.api import * c = cu doc = '' class C(BaseConstants): NAME_IN_URL = 'WorkerID' PLAYERS_PER_GROUP = None NUM_ROUNDS = 1 class Subsession(BaseSubsession): pass class Group(BaseGroup): pass class Player(BasePlayer): WorkerID = models.StringField(label='Please enter your Worker ID') class MyPage(Page): form_model = 'player' form_fields = ['WorkerID'] page_sequence = [MyPage]