>>> from django import forms
>>> from django.forms.formsets import formset_factory
>>>
>>> class CheckBox (forms.Form):
... overwrite = forms.BooleanField (required = False)
...
>>>
>>> data = {
... 'form-TOTAL_FORMS': '2',
... 'form-INITIAL_FORMS': '0',
... 'form-MAX_NUM_FORMS': '3',
... 'checkbox-0-overwrite': True,
... 'checkbox-1-overwrite': False,
...}
>>>
>>> CheckboxFormSet = formset_factory (CheckBox)
>>> formset = CheckboxFormSet (data)
>>> formset.is_valid ()
True
>>> formset.cleaned_data
[{}, {}]
>>>