import re
from sqlalchemy import *
db = create_engine('sqlite:///code.db')
db.echo = True
metadata = MetaData(db)
halo4 = Table('emblem_codes', metadata, autoload=True)
#########################
## Get One Unused Code ##
#########################
s = select([halo4.c.code, halo4.c.status=='None'])
result = s.execute()
for row in result:
print row
我的代码返回所有 80999 结果。我只想要一个。最好的方法是什么?
这是 code.db 的示例:
(u'JRQRY-MYHW3-D67GR-7YWFF-CRJ31', None)
(u'9D7DR-4WFDY-VG49F-3DYCG-7DYT5', None)
(u'QR9WT-P3CTM-PW4WW-34JJ4-RFKV7', None)
(u'7FMXQ-H97TC-FFYC6-XHXFV-Y7KR2', None)
(u'VKHXW-29WC4-4PF4Y-2QMJ4-4W2H4', None)