Python dict sorting

Python dict is unordered and extracts the corresponding value according to the key. If we need to sort the value, Python dict can be sorted by the following method:

The following is the order of values from large to small.

Dic = {'A': 31, 'bc': 5, 'C': 3, 'asd ': 4, 'A': 74, 'D': 0}
Dict = sorted (DIC. iteritems (), Key = Lambda D: d [1], reverse = true)
Print dict

Output result:
[('A', 74), ('A', 31), ('bc', 5), ('asd ', 4), ('C ', 3), ('D', 0)]

Next let's break it downCode
Print DIC. iteritems () to obtain the [(Key, value)] list.
Then, use the sorted method and the key parameter to specify that the sorting is based on the value, that is, the value of the first element d [1. Reverse = true indicates that the system needs to be flipped. The default value is from small to large. If it is flipped, it is from large to small.