Index: /issm/trunk-jpl/src/m/classes/toolkits.py
===================================================================
--- /issm/trunk-jpl/src/m/classes/toolkits.py	(revision 20912)
+++ /issm/trunk-jpl/src/m/classes/toolkits.py	(revision 20913)
@@ -52,5 +52,4 @@
 		#Create dynamic property if property does not exist yet
 		if not hasattr(self,analysis):
-#			exec("self.%s = None" % analysis)
 			setattr(self,analysis,None)
 
Index: /issm/trunk-jpl/src/m/consistency/checkfield.py
===================================================================
--- /issm/trunk-jpl/src/m/consistency/checkfield.py	(revision 20912)
+++ /issm/trunk-jpl/src/m/consistency/checkfield.py	(revision 20913)
@@ -41,5 +41,5 @@
 	else:
 		fieldname=options.getfieldvalue('fieldname') 
-		exec("field=md.%s" % fieldname)
+		exec("field=md.{}".format(fieldname))
 
 	if isinstance(field,(bool,int,long,float)):
Index: /issm/trunk-jpl/src/m/consistency/ismodelselfconsistent.py
===================================================================
--- /issm/trunk-jpl/src/m/consistency/ismodelselfconsistent.py	(revision 20912)
+++ /issm/trunk-jpl/src/m/consistency/ismodelselfconsistent.py	(revision 20913)
@@ -84,5 +84,5 @@
 
 		#Check consistency of the object
-		exec("md.%s.checkconsistency(md,solution,analyses)" % field)
+		exec("md.{}.checkconsistency(md,solution,analyses)".format(field))
 
 	#error message if mode is not consistent