So here is my code

//form.py
class aa():
  animal = RadioField('radio', choices=[('animal_a','cat'),('animal_b','dog')])

//aa.html
{% for subfield in aa.animal %} 
  {{ subfield.id }} //here i want get 'animal_a' or 'anmial_b'. but i get 'animal'
{% endfor %}

tried subfield.label.text
This gives me ‘cat’ or ‘dog’

Can anyone give me help?