Instead of execfile(fn) use exec(open(fn).read())
Instead of execfile(fn) use exec(open(fn).read())

opennode/waldur-mastermind,opennode/nodeconductor-assembly-waldur,opennode/waldur-mastermind,opennode/waldur-mastermind,opennode/waldur-mastermind,opennode/nodeconductor-assembly-waldur,opennode/nodeconductor-assembly-waldur