add pretty formatting for units

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Tech stack
python
Domain
data

Research direction

Start with the Pint Unit formatting examples in the issue, including the ~P format and the proposed Pcf formatter. Determine the desired pretty-string behavior for units such as degrees_east and degrees, then document what output would count as done.

Written by the indexing model from the issue text.

Description

Continuing from https://github.com/xarray-contrib/cf-xarray/pull/284#issuecomment-1018130308 (cc @keewis)

I see pint has a "pretty" formatting mode. Is there a way we can define the "pretty" string?

u = units.Unit("degrees_east")
f"{u:~P}"

degrees_east

EDIT: I see even pint doesn't do the pretty ° for "degrees"

u = units.Unit("degrees")
f"{u:P}"

degree

EDIT2: Should we define a Pcf formatter for our own pretty strings?

Dominant language
Python
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Forks
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Avg merge
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Merged PRs (30d)
1

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