排序数组的dicts python？

Question

使用以下

代码

arr = [{"name":"joe", "hotdogs":5},{"name":"april", "hotdogs":5},{"name":"ryan", "hot dogs":8}]

如何在python中对数组中的元素进行排序，例如dicts按名称排序？

arr = [{"name":"april", "hotdogs":5},{"name":"joe", "hotdogs":5},{"name":"ryan", "hotdogs":8}]

如何应用某些函数对数组中的dicts进行排序？

Answer 1

像这样：

arr.sort(key=operator.itemgetter('name'))

Answer 2

查看以下网页： http://wiki.python.org/moin/HowTo/Sorting/

Answer 3

怎么样

>>> import collections
>>> collections.OrderedDict(april=5, joe=5, ryan=8)
OrderedDict([('april', 5), ('joe', 5), ('ryan', 8)]

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或根据DSM的评论

>>> collections.OrderedDict([('april', 5), ('joe', 5), ('ryan', 8)])
OrderedDict([('april', 5), ('joe', 5), ('ryan', 8)])