python 字典列表排序operator.itemgetter()

import operator

x = [{'name':'Homer', 'age':39}, {'name':'Bart', 'age':10}]
sorted_x = sorted(x, key=operator.itemgetter('name'))

print sorted_x
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[{'age': 10, 'name': 'Bart'}, {'age': 39, 'name': 'Homer'}]

sorted_x = sorted(x, key=operator.itemgetter('name'),reverse=True)