Do not keep label guids, they're not immediately useful.

diff --git a/src/nepi/core/execute.py b/src/nepi/core/execute.py
index e4f10d2..f31f6c1 100644 (file)
--- a/src/nepi/core/execute.py
+++ b/src/nepi/core/execute.py
@@ -270,7 +270,6 @@ class ExperimentController(object):
         self._experiment_xml = experiment_xml
         self._testbeds = dict()
         self._access_config = dict()
-        self._label_guids = dict()
 
     @property
     def experiment_xml(self):
@@ -349,7 +348,6 @@ class ExperimentController(object):
                                         label=label), 
                                     value)
                                 data.set_attribute_data(guid, name, value)
-        self._label_guids = label_guids
         self._program_testbed_instances(element_guids, data)
 
     def _program_testbed_instances(self, element_guids, data):