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Units of measure as required by the Climate and Forecast (CF) metadata conventions

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Units of measure as defined by the Climate and Forecast (CF) metadata conventions.

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Units of measure as required by the Climate and Forecast (CF) metadata conventions.

Provision of a wrapper class to support Unidata/UCAR UDUNITS-2 library, and the cftime calendar functionality.

Documentation can be found at


>>> from cf_units import Unit
>>> km = Unit('kilometers')
>>> m = Unit('meters')
>>> m.convert(1500, km)

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  • Report bugs, suggest features or view the source code on GitHub.

License and copyright

cf-units is licensed under GNU Lesser General Public License (LGPLv3).

Development occurs on GitHub at, with a contributor's license agreement (CLA) that can be found at

(C) British Crown Copyright, Met Office

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