My first day without Python 2: slack was the first casualty
The great deprecation of Python 2.x has been underway for more than a decade. As of Jan 1, 2020, its dead.
Today I updated a home machine to Ubuntu 20.04. No more
python package. We do still have a bit of python 2.7 kicking around:
dpkg -S /usr/bin/python2 python2-minimal: /usr/bin/python2
On update it helpfully removed
slack. Now, I would be ok with that (I don't really use it), but I decided to dig into why, and show you the fix.
First, the reason. The
slack desktop package (
electron, ugh), has a dependency on
python. We have a
python3 (pointing to 3.8), but no
OK, lets fix it.
mkdir /tmp/x dpkg-deb -R slack-desktop-4.3.2-amd64.deb /tmp/x sed -i -e 's?python,??' /tmp/x/DEBIAN/control dpkg-deb -b /tmp/x /tmp/slack-desktop-fixed.deb dpkg -i /tmp/slack-desktop-fixed.deb
done. Turns out it wasn't really needed.
slack folks will update the desktop package to remove the unsupported python2. RIP.