conda
`#1 - Conda Installation
`#2 - Conda Forge
How to use conda
`#3 - Conda Environments
`#58 - Matplotlib 3 and Cartopy
roll back version
$ conda list
$ conda install matplotlib=2 cartopy=0.16
`#63 - Switching Kernels
`#81 - Managing Environments
`#170 - Setting up a Windows Machine with Miniconda and Conda-Forge : Unidata Developer's Blog Tips
clean up unnecessary files
$ conda clean -tp
$ conda create --name myclone --clone myenv
See also