It&#x27;s mentioned in PEP0394 that some older distros did not have python2 even though python 2.X was installed. Since RedHat still supports a release with Python 2.4 as the default, I guess it might still crop up on some boxen, at least for another year until RHEL 5 reaches end-of-life.<p>Assuming python points to python2 will also break stuff, though, there are more bleeding-edge OS&#x27;s where python points to python3 and has done so for years (e.g. ArchLinux).