Reformat python libraries.

PEP8 reformat
fix typos
docstrings reformat

Change-Id: Ic48ba4e06490630808b8e2ab1ab0b046ec7eeed7
Signed-off-by: Matej Klotton <mklotton@cisco.com>

1 files changed, 5 insertions, 8 deletions

diff --git a/resources/libraries/python/NodePath.py b/resources/libraries/python/NodePath.py
index 51808c3edf..bbc6d31811 100644
--- a/resources/libraries/python/NodePath.py
+++ b/resources/libraries/python/NodePath.py
@@ -13,7 +13,7 @@
 
 """Path utilities library for nodes in the topology."""
 
-from topology import Topology
+from resources.libraries.python.topology import Topology
 
 
 class NodePath(object):
@@ -89,8 +89,8 @@ class NodePath(object):
         """Compute path for added nodes.
 
         :param always_same_link: If True use always same link between two nodes
-            in path. If False use different link (if available) between two
-            nodes if one link was used before.
+        in path. If False use different link (if available) between two
+        nodes if one link was used before.
         :type always_same_link: bool
 
         .. note:: First add at least two nodes to the topology.
@@ -108,16 +108,13 @@ class NodePath(object):
                 raise RuntimeError('No link between {0} and {1}'.format(
                     node1['host'], node2['host']))
 
-            link = None
-            l_set = set()
-
             if always_same_link:
                 l_set = set(links).intersection(self._links)
             else:
                 l_set = set(links).difference(self._links)
                 if not l_set:
                     raise RuntimeError(
-                        'No free link between {0} and {1}, all links already ' \
+                        'No free link between {0} and {1}, all links already '
                         'used'.format(node1['host'], node2['host']))
 
             if not l_set:
@@ -143,7 +140,7 @@ class NodePath(object):
         .. note:: Call compute_path before.
         """
         if not self._path_iter:
-            return (None, None)
+            return None, None
         else:
             return self._path_iter.pop()