How To Make Pre-selected Checkbox In Django?

My form has CheckboxSelectMultiple widget receiving user's preferences. I want to show a pre-checked preference to user. I know there is one way to pre-check widget in the templat

Solution 1:

Just pass the values you want to be checked to initial (see docs) when you instantiate the form:

MyForm(initial={
    'my_multi': ['a', 'b', 'c']
})

Solution 2:

import django
from django import forms

classMyForm(forms.Form):
     option = forms.BooleanField(required=False, initial=True)

It renders so

<tr><th><labelfor="id_option">Option:</label></th><td><inputchecked="checked"type="checkbox"name="option"id="id_option" /></td></tr>