diff --git a/datasets/bathy/docker/oceaneyes/runner.py b/datasets/bathy/docker/oceaneyes/runner.py
index d13cfc98..076bdbb7 100644
--- a/datasets/bathy/docker/oceaneyes/runner.py
+++ b/datasets/bathy/docker/oceaneyes/runner.py
@@ -278,14 +278,14 @@ def runClassifier(classifier, classifier_func, num_processes=6):
             pool.close()
             pool.join()
             for i in range(len(beam_list)):
-                if results[i] != None:
+                if results[i] is not None:
                     beam_table[beam_list[i]][classifier] = results[i]
                 else:
                     beam_failures.append(beam_list[i])
         else:
             for beam in beam_list:
                 result = classifier_func(spot_table[beam], beam_table[beam])
-                if result != None:
+                if result is not None:
                     beam_table[beam][classifier] = result
                 else:
                     beam_failures.append(beam)
diff --git a/datasets/bathy/endpoints/atl24g.lua b/datasets/bathy/endpoints/atl24g.lua
index 11742a6a..0d4759db 100644
--- a/datasets/bathy/endpoints/atl24g.lua
+++ b/datasets/bathy/endpoints/atl24g.lua
@@ -243,8 +243,7 @@ for beam,dataframe in pairs(dataframes) do
     end
     failed_processing_run = failed_processing_run or failed_dataframe
 end
--- delay clean up and exit because race condition exists for
--- dataframes that otherwise might not have finished yet
+-- exit here after all dataframes have finished
 if failed_processing_run then
     cleanup(crenv, transaction_id)
     return