diff --git a/examples/ClientTests/scripts/SiliconBlock.py b/examples/ClientTests/scripts/SiliconBlock.py
index 93954a77e7683bb5fcfc3005766bd68477fb473b..18af99420f2b82428a6cd6c4ae572598dd915881 100644
--- a/examples/ClientTests/scripts/SiliconBlock.py
+++ b/examples/ClientTests/scripts/SiliconBlock.py
@@ -12,7 +12,6 @@
 #
 from __future__ import absolute_import, unicode_literals
 import os
-import sys
 import time
 import DDG4
 from DDG4 import OutputLevel as Output
@@ -40,7 +39,7 @@ def run():
   geant4.printDetectors()
   # Configure UI
   if args.macro:
-    ui = geant4.setupCshUI(macro=macro)
+    ui = geant4.setupCshUI(macro=args.macro)
   else:
     ui = geant4.setupCshUI()
   if args.batch:
diff --git a/examples/ClientTests/scripts/SiliconBlockFastSim.py b/examples/ClientTests/scripts/SiliconBlockFastSim.py
index d1817250e15bd18362407d4a2700c705c0ac0991..790641b3baa54ec81bb821a82900ef5ecbe279a2 100644
--- a/examples/ClientTests/scripts/SiliconBlockFastSim.py
+++ b/examples/ClientTests/scripts/SiliconBlockFastSim.py
@@ -12,7 +12,6 @@
 #
 from __future__ import absolute_import, unicode_literals
 import os
-import sys
 import time
 import DDG4
 from DDG4 import OutputLevel as Output
@@ -120,5 +119,6 @@ def run():
 
   geant4.execute()
 
+
 if __name__ == "__main__":
   run()
diff --git a/examples/ClientTests/scripts/SiliconBlockGFlash.py b/examples/ClientTests/scripts/SiliconBlockGFlash.py
index ea5b2669185d911d5663aee9af7d707fe685ced4..133b305518041b847e58b60ac7e7549b67c5e4e2 100644
--- a/examples/ClientTests/scripts/SiliconBlockGFlash.py
+++ b/examples/ClientTests/scripts/SiliconBlockGFlash.py
@@ -12,7 +12,6 @@
 #
 from __future__ import absolute_import, unicode_literals
 import os
-import sys
 import time
 import DDG4
 from DDG4 import OutputLevel as Output
diff --git a/examples/DDG4_MySensDet/scripts/MyTrackerSD_sim.py b/examples/DDG4_MySensDet/scripts/MyTrackerSD_sim.py
index 922b5724bbd6c218b3eb919ab00c1e70a9f65f15..c73cf025c73ab43e33a8e5b11157b69391ff5411 100644
--- a/examples/DDG4_MySensDet/scripts/MyTrackerSD_sim.py
+++ b/examples/DDG4_MySensDet/scripts/MyTrackerSD_sim.py
@@ -2,7 +2,6 @@
 #
 from __future__ import absolute_import, unicode_literals
 import os
-import sys
 import time
 import DDG4
 from DDG4 import OutputLevel as Output