【python】dictオブジェクトをkeysでソート

以下コード例

import collections
dct = {2:3,  1:89,  4:5,  3:0} 
new_dict = collections.OrderedDict(sorted(dct.items()))

new_dict      # =>  OrderedDict([(1,  89),  (2,  3),  (3,  0),  (4,  5)])
new_dict.keys()       # => odict_keys([1,  2,  3,  4])
new_dict.values()     # => odict_values([89,  3,  0,  5])
new_dict.items()      # => odict_items([(1,  89),  (2,  3),  (3,  0),  (4,  5)])