相关疑难解决方法(0)

PLANNING_CHOICES = (
    ('0',u'Every morning'),
    ('1',u'Every night'),
    ('2',u'Never'),
)

    planning = forms.ChoiceField(
                                required=True,    
                                choices = PLANNING_CHOICES,
                                )

有一个名为planning的表单字段,我需要在选项中添加title属性,最后呈现为:

                <select>
                    <option value="0" title="bla1">Every morning</option>
                    <option value="1" title="bla2">Every night</option>
                    <option value="2" title="bla3">Never</option>
                </select>

如何实现？