systematic use of context managers for dealing with files instead of open()/close...

[nepi.git] / src / nepi / resources / planetlab / node.py

diff --git a/src/nepi/resources/planetlab/node.py b/src/nepi/resources/planetlab/node.py
index dc70df5..9ef4a19 100644 (file)
--- a/src/nepi/resources/planetlab/node.py
+++ b/src/nepi/resources/planetlab/node.py
@@ -3,9 +3,8 @@
 #    Copyright (C) 2013 INRIA
 #
 #    This program is free software: you can redistribute it and/or modify
-#    it under the terms of the GNU General Public License as published by
-#    the Free Software Foundation, either version 3 of the License, or
-#    (at your option) any later version.
+#    it under the terms of the GNU General Public License version 2 as
+#    published by the Free Software Foundation;
 #
 #    This program is distributed in the hope that it will be useful,
 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -37,10 +36,10 @@ import weakref
 
 @clsinit_copy
 class PlanetlabNode(LinuxNode):
-    _rtype = "PlanetlabNode"
+    _rtype = "planetlab::Node"
     _help = "Controls a PlanetLab host accessible using a SSH key " \
             "associated to a PlanetLab user account"
-    _backend = "planetlab"
+    _platform = "planetlab"
 
     lock = threading.Lock()
 
@@ -211,10 +210,12 @@ class PlanetlabNode(LinuxNode):
         plblacklist_file = os.path.join(nepi_home, "plblacklist.txt")
         if not os.path.exists(plblacklist_file):
             if os.path.isdir(nepi_home):
-                open(plblacklist_file, 'w').close()
+                with open(plblacklist_file, 'w') as clear:
+                    pass
             else:
                 os.makedirs(nepi_home)
-                open(plblacklist_file, 'w').close()
+                with open(plblacklist_file, 'w') as clear:
+                    pass
 
     def _skip_provision(self):
         pl_user = self.get("pluser")