I have noticed pip warnings in the container build logs about python2 being unsupported- perhaps there is some "treat warnings as errors" flag set in some build

I have noticed pip warnings in the container build logs about python2 being unsupported- perhaps there is some "treat warnings as errors" flag set in some builds. Perhaps some builds use untagged base OS containers- building those after python2 is removed will fail. Also, at some point old OS package repositories may be deleted (or bitrot out of neglect)- at that point building containers that depend on python2 will fail. You'll be able to use images built previously, but not everyone is backing up custom images in some remote docker registry.