Error with GCP's KMS with gcloud command line: cryptography.hazmat.primitives.keywrap has no aes_key_wrap_with_padding attribute
I determined that somehow I had varying versions of cryptography installed using pip list, pip2 list, and pip3 list.
Solved by using the commands below. I'm not quite sure were necessary or not, but I'm up and running with gcloud now.
pip3 install --upgrade pip (upgrade pip3)
pip uninstall cryptography (and pip2 and pip3)
sudo apt remove cryptography
pip3 install cryptography