Python:如何创建一个两元组的序列

时间:2013-09-22 22:59:33

标签: python django python-2.7 django-models tuples

我正在使用Django,我收到一个错误,我不知道如何修复。我确定这是一个新手问题。我有以下数据结构,我认为这将是“一个两元组的序列:”

CONFERENCES = (
    ( 'AE' 'AFC East' ),
    ( 'AN' 'AFC North' ),
    ( 'AS' 'AFC South' ),
    ( 'AW' 'AFC West' ),
    ( 'NE' 'NFC East' ),
    ( 'NN' 'NFC North' ),
    ( 'NS' 'NFC South' ),
    ( 'NW' 'NFC West' ),
)

这是这样引用的:

class Conference( models.Model ): 
    conference_name = models.CharField( max_length=2, choices=CONFERENCES ) 

但是,运行python manage.py validate后,Django正在给我这个错误:

gameTrackerApp.conference: "conference_name": "choices" should be a sequence of two-tuples.

我做错了什么?

1 个答案:

答案 0 :(得分:5)

缺少逗号:

CONFERENCES = (
   ( 'AE', 'AFC East' ),
   ( 'AN', 'AFC North' ),
   ( 'AS', 'AFC South' ),
   ( 'AW', 'AFC West' ),
   ( 'NE', 'NFC East' ),
   ( 'NN', 'NFC North' ),
   ( 'NS', 'NFC South' ),
   ( 'NW', 'NFC West' ),
)