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Register percent and permille units #359

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merged 3 commits into from Feb 8, 2022
Merged

Register percent and permille units #359

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5a02edf
Register percent and permille units
Flix6x Feb 4, 2022
61f032a
Changelog entry
Flix6x Feb 4, 2022
89db391
Add test case
Flix6x Feb 8, 2022
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1 change: 1 addition & 0 deletions documentation/changelog.rst
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Expand Up @@ -15,6 +15,7 @@ New features
* Add CLI commands ``flexmeasures add sensor``, ``flexmeasures add asset-type``, ``flexmeasures add beliefs`` (which were experimental features before). [see `PR #337 <http://www.github.com/FlexMeasures/flexmeasures/pull/337>`_]
* Add CLI commands for showing data [see `PR #339 <http://www.github.com/FlexMeasures/flexmeasures/pull/339>`_]
* Add CLI command for attaching annotations to assets: ``flexmeasures add holidays`` adds public holidays [see `PR #343 <http://www.github.com/FlexMeasures/flexmeasures/pull/343>`_]
* Support for percent (%) and permille (‰) sensor units [see `PR #359 <http://www.github.com/FlexMeasures/flexmeasures/pull/359>`_]

Bugfixes
-----------
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10 changes: 9 additions & 1 deletion flexmeasures/utils/unit_utils.py
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Expand Up @@ -31,8 +31,16 @@
)

# Set up UnitRegistry with abbreviated scientific format
ur = pint.UnitRegistry(full_template)
ur = pint.UnitRegistry(
full_template,
preprocessors=[
lambda s: s.replace("%", " percent "),
lambda s: s.replace("‰", " permille "),
],
)
ur.default_format = "~P" # short pretty
ur.define("percent = 1 / 100 = %")
ur.define("permille = 1 / 1000 = ‰")


PREFERRED_UNITS = [
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