Cannot authenticate python-graph-tool and python3-graph-tool even after adding public key to apt-key on Ubuntu Xenial
Hi, I am trying to install graph-tool on my machine. I was following all the instructions https://graph-tool.skewed.de/download , adding the key first before running the apt-get. I have verified that the key was successfully added with apt-key list. However, when I run apt-get install, I keep getting
WARNING: The following packages cannot be authenticated! python-graph-tool
which is also the case for python3.
So right now I'm not sure if I should proceed. Can anyone verify if it is safe to proceed?
Thank you.