def get_formset(self, request, obj=None, **kwargs):
    formset_class = super(PaginationInline, self).get_formset(request, obj,
        **kwargs)


class PaginationFormSet(formset_class):

    def __init__(self, *args, **kwargs):
        super(PaginationFormSet, self).__init__(*args, **kwargs)
Paginator для встроенных моделей в админке django