New versions of cf-python and cf-plot for Python 3

As you probably know, Python 2 is being frozen at the end of this year - so Python 3 is the future!

We are happy to announce that the Python 3 versions of cf-python (v3.0.1) and cf-plot (v3.0.3) are now available for Linux and Mac.

The new cf-plot documentation is in its usual place (, but the new cf-python documentation has moved to a new home:

These new versions are only Python 3-only, and we would encourage new users to start with Python 3. All future training courses will be run using Python 3.

The Python 2 code is still available, of course, and will be fully supported for a limited period - but all new features from now on will only go into the Python 3 libraries.

Both the Python 2 and Python 3 versions of cf-python and cf-plot are already installed on

  • Jasmin@CEDA,
  • Archer
  • Archer Jasmin RDF
  • Reading University RACC cluster

See for access instructions, as well as instructions for personal installations.

We hope that you enjoy using the new versions, and welcome feedback of any nature.


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