diff --git a/Control/AthenaCommon/python/JobProperties.py b/Control/AthenaCommon/python/JobProperties.py
index e26059c7e083a6f813d00001a9a76066841c9c2a..4a6805b9e973e5660297652accd66d71568eff03 100755
--- a/Control/AthenaCommon/python/JobProperties.py
+++ b/Control/AthenaCommon/python/JobProperties.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
+# Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
 
 #=======================================================================
 # File: JobProperties/python/JobProperties.py
@@ -551,6 +551,8 @@ class JobPropertyContainer (object):
                 module=__import__(module_name,globals(),locals(),\
                               ['JobProperties'])
         except ImportError:
+            import traceback
+            traceback.print_exc()
             self._log.error(" import_JobProperties: No module named %s",
                             module_name)
             return None
diff --git a/Control/AthenaCommon/python/PhysicalConstants.py b/Control/AthenaCommon/python/PhysicalConstants.py
index ae29fb01eb6533e07ab9df5040247b02be049d1c..3b16529de3715a2b54669117bdfbee3eae99784f 100755
--- a/Control/AthenaCommon/python/PhysicalConstants.py
+++ b/Control/AthenaCommon/python/PhysicalConstants.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
+# Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
 
 # File: AthenaCommon/share/PhysicalConstants.py
 # Author: Wim Lavrijsen (LBNL, WLavrijsen@lbl.gov)
@@ -43,7 +43,7 @@
 
 from __future__ import print_function
 
-from SystemOfUnits import henry, eplus, MeV, joule, s, m, kelvin, atmosphere, g, mg, cm3, mole
+from .SystemOfUnits import henry, eplus, MeV, joule, s, m, kelvin, atmosphere, g, mg, cm3, mole
 
 #
 #
diff --git a/Control/AthenaCommon/share/MemTraceInclude.py b/Control/AthenaCommon/share/MemTraceInclude.py
index 44c8c5f6099eb1d1875371f37b2f482b9424a660..d9fb0f7a90e5f17bf9898fad186486b091d60829 100755
--- a/Control/AthenaCommon/share/MemTraceInclude.py
+++ b/Control/AthenaCommon/share/MemTraceInclude.py
@@ -1,10 +1,11 @@
 import string
+import six
 
 from AthenaCommon.Include import Include
 class MemTraceInclude( Include ):
    def __init__( self, org ):
       Include.__init__( self, org._show )
-      for name, value in org.__dict__.iteritems():
+      for name, value in six.iteritems (org.__dict__):
          setattr (self, name, value)
       import AthenaCommon.Logging as L
       self.msg = L.logging.getLogger('Athena')
@@ -15,8 +16,8 @@ class MemTraceInclude( Include ):
       from sys import platform
       if platform != 'darwin' :
           pid = os.getpid()
-          statm = string.split( open( '/proc/%d/statm' % pid, 'r' ).readlines()[0] )
-          stat = string.split( open( '/proc/%d/stat' % pid, 'r' ).readlines()[0] )
+          statm = open( '/proc/%d/statm' % pid, 'r' ).readlines()[0].split()
+          stat =  open( '/proc/%d/stat' % pid, 'r' ).readlines()[0].split()
 
           self.msg.info(
              'VSIZE = %8.3f MB, SIZE = %8.3f MB, RSS = %8.3f MB',