gh-71682: Make pprint.pformat always order sets

[bbonenfant]

This makes the pprint.pformat perform the default ordering on all set and frozenset objects. This was determined to be a bug, since these objects are ordered if they violate the maximum width of the output, but was never fixed.

Reference: https://bugs.python.org/issue27495

https://bugs.python.org/issue27495

• Issue: Pretty printing sorting for set and frozenset instances #71682

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[ZackerySpytz]

Sorry, but this block is almost a complete duplicate of the one above (please fix that).

[bbonenfant]

I have merged this section with the above one. Please let me know if this is satisfactory. I originally separated them to follow the layout of the function and separate out new code from old code.

[github-actions]

This PR is stale because it has been open for 30 days with no activity.

[tyates-indeed]

I would like to see this get merged in. Is there anything I can do to help get this merged?

[MaxwellDupre]

I see test results say:
Ran 35 tests in 0.123s
OK (expected failures=1)
Looks ok to me.

[rhattersley]

Looks like the only merge conflict is both "Ben Bonenfant" and "David Bonner" have been added to the Misc/ACKS file so it should be trivial to resolve. It'd be great if someone with the relevant permissions could get this in, thanks. 👍

[arhadthedev]

@freddrake could you merge this PR if feasible, please (as a pprint expert and a core dev)?

[furkanonder]

LGTM

[devdanzin]

As a bugfix, can this still land in 3.13?

[bbonenfant]

I appreciate the continued interest in this PR. I'm happy to do whatever is necessary to get this merged, but I'm not sure what else I can do besides wait for a core team member to give it review.