如何返回特定的json字段？

Question

如何让这个函数只返回值“Accounting”

def getowner():
       z = [{u'_ref': u'network/ZG5zLm5ldHdvcmskMTAuMTAwLjEwMC4wLz90jLzA:10.100.100.0/24/default', u'extattrs': {u'Owner': {u'value': u'Accounting'}}}]
       return ((h['value']) for h in z['Owner'])


z = getowner()
print z

我收到错误TypeError: list indices must be integers, not str

Answer 1

由于周围的方括号，您的z变量是一个数组（一个元素）。以下是我如何访问您所拥有的内容：

>>> z[0]['extattrs']['Owner']['value']
u'Accounting'

Answer 2

将代码更改为：

def getowner():
   z = [{u'_ref': u'network/ZG5zLm5ldHdvcmskMTAuMTAwLjEwMC4wLz90jLzA:10.100.100.0/24/default', u'extattrs': {u'Owner': {u'value': u'Accounting'}}}]
   return z[0]['extattrs']['Owner']['value']

z = getowner()
print z