Replaced some exec tests with creates parameter

python/manifests/init.pp

@@ -17,7 +17,7 @@ define python::setup::install($python="python") {
         path    => "/bin:/usr/bin:/sbin:/usr/sbin",
         cwd     => "${name}",
         command => "${python} setup.py install",
-        unless  => "test -d build",
+        creates => "${name}/build",
     }
 
 }