spynnaker or spynakker?
I noticed the ranged dictionaries and lists use spynakker as a prefix instead of spynnaker, is this OK?

https://github.com/SpiNNakerManchester/sPyNNaker/tree/master/spynnaker/pyNN/utilities/ranged
diff --git a/spynnaker/pyNN/abstract_spinnaker_common.py b/spynnaker/pyNN/abstract_spinnaker_common.py
index 630a0c881e..7555aeff58 100644
--- a/spynnaker/pyNN/abstract_spinnaker_common.py
+++ b/spynnaker/pyNN/abstract_spinnaker_common.py
@@ -273,11 +273,11 @@ class AbstractSpiNNakerCommon(with_metaclass(
         """
         return self.__max_delay
 
-    def add_application_vertex(self, vertex, prefix=None):
+    def add_application_vertex(self, vertex):
         if isinstance(vertex, CommandSender):
             self._command_sender = vertex
 
-        AbstractSpinnakerBase.add_application_vertex(self, vertex, prefix)
+        AbstractSpinnakerBase.add_application_vertex(self, vertex)
 
     @staticmethod
     def _count_unique_keys(commands):
diff --git a/spynnaker/pyNN/models/pynn_population_common.py b/spynnaker/pyNN/models/pynn_population_common.py
index 9c0fec3042..bbe227e7c2 100644
--- a/spynnaker/pyNN/models/pynn_population_common.py
+++ b/spynnaker/pyNN/models/pynn_population_common.py
@@ -120,7 +120,7 @@ class PyNNPopulationCommon(object):
         # add objects to the SpiNNaker control class
         self.__spinnaker_control.add_population(self)
         self.__spinnaker_control.add_application_vertex(
-            self.__vertex, "Population ")
+            self.__vertex)
 
         # initialise common stuff
         self._size = size
diff --git a/spynnaker/pyNN/spynnaker_external_device_plugin_manager.py b/spynnaker/pyNN/spynnaker_external_device_plugin_manager.py
index ad5f442e45..7acbcd20fb 100644
--- a/spynnaker/pyNN/spynnaker_external_device_plugin_manager.py
+++ b/spynnaker/pyNN/spynnaker_external_device_plugin_manager.py
@@ -282,8 +282,8 @@ class SpynnakerExternalDevicePluginManager(object):
         _spinnaker.add_application_edge(edge, partition_id)
 
     @staticmethod
-    def add_application_vertex(vertex, prefix=None):
-        get_simulator().add_application_vertex(vertex, prefix)
+    def add_application_vertex(vertex):
+        get_simulator().add_application_vertex(vertex)
 
     @staticmethod
     def machine_time_step():
diff --git a/unittests/mocks.py b/unittests/mocks.py
index 9491b0d146..035e221421 100644
--- a/unittests/mocks.py
+++ b/unittests/mocks.py
@@ -91,7 +91,7 @@ class MockSimulator(object):
     def add_population(self, pop):
         pass
 
-    def add_application_vertex(self, vertex, prefix=None):
+    def add_application_vertex(self, vertex):
         pass
 
     def verify_not_running(self):
['spynnaker/pyNN/models/pynn_population_common.py', 'spynnaker/pyNN/abstract_spinnaker_common.py', 'unittests/mocks.py', 'spynnaker/pyNN/spynnaker_external_device_plugin_manager.py']