A cartographic python library with matplotlib support.
This module should be on the standard Python search path. Just use import cartopy in your scripts.
(You will need to use Python 3 on 20.04 focal, but can use either Python 2 or 3 on 18.04 bionic.)
Available from Ubuntu 14.04 to 18.04.
Prior to bionic, not an Ubuntu package. Installed as a dependency of Iris so not doing a full virtualenv for it, just install module on the NFS server and add path to the sitecustomize.py file.
On xenial, installed it through pip:
pip install Cartopy --prefix=/usr/local/
Copied the files it created and built a deb from them.
(On bionic, it seems to have come from bionic/universe:python-cartopy)