Dear FerretersG'daySo there is a way out of this problem but it is not the fix to the current version of pyferret installation with ubuntu 20.04 LTS.Here is the fix if you want to use the latest pyferret (7.64 version)(1) go to the anaconda link https://anaconda.org/conda-forge/pyferret(2) you can now see there is one command to install old version under cf202003(3) so create a new ferret environment (I created FER but it can be a name of your choice) by...conda create -n FER -c conda-