Archive for 2019

Fixing GPG error “NO_PUBKEY”

Posted March 28, 2019 By grigoris

In Debian, Ubuntu and similar distros that use the APT (Advanced Package Tool – which is a set of tools for managing Debian packages / applications), to update the system you need to run: sudo apt update This will read all repositories (as they are listed in /etc/apt/sources.list and under /etc/apt/sources.list.d/) and checks if everything […]

Working with both Python 2 and 3 in jupyter

Posted January 16, 2019 By grigoris

I have followed the pip install approach to add everything that I wanted for Python. Even though I did the same for jupyter when I was starting it (“jupyter notebook”) it would only start the Python 2 kernel, although Python 3 “was there” but not active actually. After some digging I found that a similar […]