python OrderDict

Posted 2021-01-16 xiaodebing

# encoding: utf-8
import csv
import collections

d = {‘banana‘:3,‘apple‘:4,‘pear‘:1,‘orange‘:2}
print(d)
kd = collections.OrderedDict(sorted(d.items(),key = lambda t:t[0]))
print(‘key order‘)
print(kd)
vd = collections.OrderedDict(sorted(d.items(),key = lambda t:t[1]))
print(‘value order‘)
print(vd)
print(type(vd))

{‘banana‘: 3, ‘apple‘: 4, ‘pear‘: 1, ‘orange‘: 2}
key order
OrderedDict([(‘apple‘, 4), (‘banana‘, 3), (‘orange‘, 2), (‘pear‘, 1)])
value order
OrderedDict([(‘pear‘, 1), (‘orange‘, 2), (‘banana‘, 3), (‘apple‘, 4)])
<class ‘collections.OrderedDict‘>

Process finished with exit code 0