pythonist

Thank you! Go has made me enjoy programming once again.

+1 :)

I believe that this part is using the Django's pattern matching:

super(EmailValidator, self).__call__(value)

Just tried it. It works!

The difference is that reinstallation requires more work and it is more difficult then upgrades. What I wanted to say is that I would recommend everyone to try to avoid massive reinstallations between RHEL clones major versions, especially if you are supporting large number of services and fast development cycles,

This sounds more that your experience with Debian tools is much weaker then with RHEL based ones. The discussion on this is endless, both systems have advantages, I just prefer Debian from majority of reasons.

The practical side of distributions is package management in every sense. From the point of package management software (dpkg, rpm, apt, yum), repository size (official packages supported), standards in maintenance of the packages, Debian is the winner. That means that your sysadmin work will be much pleasant, and enjoyable. Having to reinstall 100+ servers from CentOS 5 to CentOS 6 will be remembered as the lowest point in my work experience so far. I still regret not convincing my boss to migrate to Debian or Debian based distribution.

I do maintain both rpm and deb packages for the company that I work for, personal projects (only deb) and community. Working on Debian related projects is always nicer and enjoyable, at least for me.

I disagree with you. Making good free software improved GNU/Linux position (GCC, Linux kernel, Apache httpd, python and may other successful projects) instead just providing what vendor is shipping binary (drivers for graphic cards, Sun-Java...) All good free software projects would not exist if we ignore them and use proprietary software instead, and community could not have impact on features that are important.