checkhosts: Fix pyflakes warnings

Change-Id: I07ef81de307860b1bf8a2929eac2888f403e1d1d
swiftcleaner: Fix pyflakes warnings

Change-Id: I73e0dc50ae361d9c1c9744c65ced686ac546a85b
udpprofile: Fix pyflakes warnings

Change-Id: Ifa5d1b3f733fef02be1e1095ed72af28a6398d6a
Merge "swiftcleaner: Fix pyflakes warnings"
Merge "udpprofile: Fix pyflakes warnings"
Merge "checkhosts: Fix pyflakes warnings"