Ordering a set in base python [duplicate]

Question

Is there a way of ordering a set in base python?

For example:

A = {1, 2, 3}
B = {3, -6, 2, 0}
print union(A, B)

Expected Output:

({-6, 0, 1, 2, 3}, 5)

My attempt:

x = A | B
y = len(x)
print((set(x), y))

My output:

({0, 1, 2, 3, -6}, 5)

I have read some of the answers for other questions and there are ways of doing it with various packages, but for this exercise, I am NOT meant to import any packages, just doing it in base python (if that is what it is called) if possible.

sets are inherently not ordered data structure, you may use a sorted list — Chris_Rands
– Chris_Rands, Commented May 9, 2019 at 10:03
This might be what you are looking for: stackoverflow.com/questions/1653970/… — trotta
– trotta, Commented May 9, 2019 at 10:03

ForceBru · Accepted Answer · 2019-05-09 10:04:25Z

1

No, sets are unordered by definition and implementation. To create a sorted list, convert your set to a list and sort it:

List = sorted(your_set)

answered May 9, 2019 at 10:04

ForceBru

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3 Comments

william3031 Over a year ago

Sort of works, but when it is converted back to a set, it is unsorted again.

ForceBru Over a year ago

@william3031, sets are unordered. There's no way to sort a set.

william3031 Over a year ago

No worries. Thanks. I am just wondering how to get to the expected output.

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