How to sort a tuple list in python

Question

i have a list containing several tuples like this one:

(label, count)

and i want to sort them by theirs counts, but i have no idea how i can do that. I know python has a built-in function sort() but i don't think i can use it in my case. I hope someone know how to do this.

example:

input: [("label 1", 5), ("label 2", 1), ("label 3", 3), ("label 4", 6)]
output: [("label 4", 6), ("label 1", 5), ("label 3", 3), ("label 2", 1)]

Kuldeep Singh Sidhu · Accepted Answer · 2020-04-26T17:03:46.020

-1

a = [("label 1", 5), ("label 2", 1), ("label 3", 3), ("label 4", 6)]
a = sorted(a, key = lambda x: int(x[1]), reverse = True)

a becomes

[('label 4', 6), ('label 1', 5), ('label 3', 3), ('label 2', 1)]

edited Apr 26 '20 at 17:03

answered Apr 26 '20 at 17:00

Kuldeep Singh Sidhu

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Why `int(...)` ? :) – Pedro Lobito Apr 26 '20 at 17:04
float or int both will work, infact if you don't give any type it will work since in this example it's already int but for generallity I have added int/float :) – Kuldeep Singh Sidhu Apr 26 '20 at 17:06

How to sort a tuple list in python

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