asottile
commented
1 year ago ubuntu bionic 18.04 has just reached end-of-life and as such its packages will be deleted
the most likely way this manifests is an error message like:
$ sudo apt install python3.9-dev
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package python3.9-dev
E: Couldn't find any package by glob 'python3.9-dev'
a reminder: I provide deadsnakes on my own time for free. I am not paid to provide these packages and though I have some limited sponsorship through github sponsors it is nowhere near a sustainable income or even close to what would cover the time I invest into deadsnakes.
packages are deleted from deadsnakes once a distribution version reaches end-of-life
launchpad provides us a limited amount of space and prevents uploading packages to an end-of-lifed distribution. as such to clear up space for newer python versions and newer ubuntu releases old ones are deleted.
fortunately, if one were willing to roll up their sleeves a bit: one can take the existing sources, rebase the patches against newer python versions, and build binary packages for them
if one needs binary builds for end-of-lifed distributions I can be contracted to build those. please contact me at my github email address (you can find it in my commits -- the .edu one) with the following information: (1) do you need hosting? (if so: estimate how many machines will be running
apt install/apt upgrade) (2) what python version(s) and distribution(s) do you need (3) do you need security patches / what is your SLA for patched software