X-Git-Url: https://gerrit.fd.io/r/gitweb?p=csit.git;a=blobdiff_plain;f=resources%2Flibraries%2Fpython%2Ftopology.py;h=3c903e5c94c1ac809f1d0307e3b3ec5fb54ca88f;hp=0b40967ef239a4943d899f43bd716af02e32ca37;hb=4dadc7a005ca99aa5a14ac650e9aa187cea10619;hpb=99519a54811a70b4ff2579baf46294507a8adfcb

diff --git a/resources/libraries/python/topology.py b/resources/libraries/python/topology.py
index 0b40967ef2..3c903e5c94 100644
--- a/resources/libraries/python/topology.py
+++ b/resources/libraries/python/topology.py
@@ -29,7 +29,10 @@ def load_topo_from_yaml():
 
     :return: Nodes from loaded topology.
     """
-    topo_path = BuiltIn().get_variable_value("${TOPOLOGY_PATH}")
+    try:
+        topo_path = BuiltIn().get_variable_value("${TOPOLOGY_PATH}")
+    except:
+        return ''
 
     with open(topo_path) as work_file:
         return load(work_file.read())['nodes']
@@ -372,7 +375,7 @@ class Topology(object):
         :return: Interface key.
         :rtype: str
 
-        :raises TypeError: If provided with invalid arguments.
+        :raises TypeError: If provided with invalid interface argument.
         :raises RuntimeError: If the interface does not exist in topology.
         """