How to upgrade all packages using pip at once

Question

I have a VM which I had installed a few years ago and there are new versions for many packages. I manually upgraded the packages I wanted to upgrade but I can’t keep doing it forever. Is there a way to upgrade all packages at once?

Answer 1

pip doesn’t have a default command for this. But you can tweak a little to get this done. Here’s is one command that works:

pip list --outdated --format=freeze | grep -v '^\-e' | cut -d = -f 1  | xargs -n1 pip install -U