saltstack/salt — pull request #4556 by cvrebert (2013-04-22 06:18:28+00:00)
Title: "X is not 0" ==> "X != 0" in dnsutil.py

`is not` just happens to work for small integers due to CPython optimizations, but it's not good practice by any means. Checking the *object identity* of ints is just weird; *equality* is what really matters.