def get_form(self, step, data=None):
        "Helper method that returns the Form instance for the given step."
        # Sanity check.
        if step >= self.num_steps():
            raise Http404('Step %s does not exist' % step)
        return self.form_list[step](data, prefix=self.prefix_for_step(step), initial=self.initial.get(step, None))
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.4/django/contrib/formtools/wizard/legacy.py/FormWizard.get_form/original