diff --git a/mcmc/mcmc_coordinator_vertex.py b/mcmc/mcmc_coordinator_vertex.py
index 1915d24..7948552 100644
--- a/mcmc/mcmc_coordinator_vertex.py
+++ b/mcmc/mcmc_coordinator_vertex.py
@@ -13,14 +13,17 @@
 # limitations under the License.
 
 from typing import List
+import random
+import numpy
 
-from pacman.model.graphs.machine import MachineVertex
-from pacman.model.resources import ConstantSDRAM
 from spinn_utilities.overrides import overrides
+from spinn_utilities.progress_bar import ProgressBar
 
 from spinnman.model.enums import ExecutableType
 
+from pacman.model.graphs.machine import MachineVertex
 from pacman.model.placements import Placement
+from pacman.model.resources import ConstantSDRAM
 
 from spinn_front_end_common.abstract_models.abstract_has_associated_binary \
     import AbstractHasAssociatedBinary
@@ -30,10 +33,6 @@
 from spinn_front_end_common.data import FecDataView
 from spinn_front_end_common.interface.ds import (
     DataSpecificationGenerator, DataType)
-from spinn_utilities.progress_bar import ProgressBar
-
-import numpy
-import random
 
 
 class MCMCCoordinatorVertex(
diff --git a/mcmc/mcmc_vertex.py b/mcmc/mcmc_vertex.py
index 90fc593..6eca989 100644
--- a/mcmc/mcmc_vertex.py
+++ b/mcmc/mcmc_vertex.py
@@ -12,13 +12,16 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from pacman.model.graphs.machine import MachineVertex
-from pacman.model.resources import ConstantSDRAM
+from enum import Enum
+import numpy
+
 from spinn_utilities.overrides import overrides
 
 from spinnman.model.enums import ExecutableType
 
+from pacman.model.graphs.machine import MachineVertex
 from pacman.model.placements import Placement
+from pacman.model.resources import ConstantSDRAM
 
 from spinn_front_end_common.abstract_models.abstract_has_associated_binary \
     import AbstractHasAssociatedBinary
@@ -34,9 +37,6 @@
 from spinn_front_end_common.interface.buffer_management \
     import recording_utilities
 
-from enum import Enum
-import numpy
-
 
 class MCMCRegions(Enum):
     """ Regions in the MCMC Data
diff --git a/mcmc_examples/lighthouse/lighthouse.py b/mcmc_examples/lighthouse/lighthouse.py
index 5e818e8..4e048a2 100644
--- a/mcmc_examples/lighthouse/lighthouse.py
+++ b/mcmc_examples/lighthouse/lighthouse.py
@@ -292,6 +292,9 @@
 
 def run_job(_thread_id, _model=model, _data_points=None,
             _n_samples=n_samples, _seed=seed):
+    """
+    Main method to run once or in multiple threads
+    """
     if _data_points is None:
         _data_points = list(data_points)
     samples = mcmc_framework.run_mcmc(