Sort dictionary by value property

Question

How can the dictionary

class Foo: def __init__(self,value): self.property = value dictionary = {"one":Foo(1), "two":Foo(2)}

be sorted in descending order, by the value of the Foo object's self.property?

Do you wanna print them sorted? Because you can't sort a dictionary. You access them by key and not by index. Am I right? — Jakub Szlaur
– Jakub Szlaur, Commented Jan 24, 2021 at 17:36

Epsi95 · Accepted Answer · 2021-01-24 17:38:58Z

7

sorted_dict = {k: v for k, v in sorted(dictionary.items(), key=lambda item: item[1].property)}

answered Jan 24, 2021 at 17:38

Epsi95

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Comments

user2093190 · Accepted Answer · 2021-01-24 17:40:30Z

Easy - don't. A dictionary is a data structure which is designed to allow efficient association between the key and its value. As such, Python uses an ordering which facilitates that. If you need a sorted result, then select the values you need into a more appropriate structure (perhaps a list) and sort that.

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