How to use multiple keys when sorting?

Question

There's this list that I want to sort:

table = [("A", 5, 3), ("B", 5, 6), ("C", 3, 1)]

Inside each tuple, let's call the elements name, points, ex, in that order.

I want to sort that list by descending order of points, that's simple enough.

But if points are the same for 2 tuples, I'll sort those by ascending order of ex.

How can I go about doing this?

just return them all in a tuple in the order you want them used — Kenny Ostrom, Dec 13 '22 at 15:30

lemon · Accepted Answer · 2022-12-13T15:41:27.383

2

You can use the "sorted" built-in function with custom ordering function. If you want to make values to be ordered descendently, it's sufficient to use negatives of the same values.

sorted(table, key = lambda x: (-x[1], x[2]))

Output:

[('A', 5, 3), ('B', 5, 6), ('C', 3, 1)]

edited Dec 13 '22 at 15:41

answered Dec 13 '22 at 15:31

lemon

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if `points` are same then ascending order of `ex`. In your answer it is descending of `ex` – Talha Tayyab Dec 13 '22 at 15:39
Messed up with what index was what, thanks! – lemon Dec 13 '22 at 15:41

How to use multiple keys when sorting?

1 Answers1