def activation_key_expired(self):
        exp_date = timedelta(days=settings.ACCOUNT_ACTIVATION_DAYS)
        return self.user.date_joined + exp_date <= datetime.now()
Determine whether this ``RegistrationProfile``'s activation
dataset/ETHPy150Open mozilla/kitsune/kitsune/users/models.py/RegistrationProfile.activation_key_expired