Re: [libvirt] [PATCH] Test for object identity when checking for None in Python

Consistently use "is" or "is not" to compare variables to None, because doing so is preferrable, as per PEP 8 (http://www.python.org/dev/peps/pep-0008/#programming-recommendations): > Comparisons to singletons like None should always be done with is or > is not, never the equality operators. Signed-off-by: Claudio Bley <cbley(a)av-test.de&gt; --- Purely mechanical change, using: find . -name '*.py' -exec sed -i -e 's,[ \t][ \t]*!=[ \t][ \t]*None, is not None,g' '{}' \+ find . -name '*.py' -exec sed -i -e 's,[ \t][ \t]*==[ \t][ \t]*None, is None,g' '{}' \+