Fix str

icartt/dataset.py

@@ -107,7 +107,7 @@ class Variable(collections.UserList):
         '''
         Return variable description string as it appears in an ICARTT file
         '''
-        return self.splitChar.join( [ self.name, self.units, self.longname ] )
+        return self.splitChar.join( [ str(self.name), str(self.units), str(self.longname) ] )
     
     def append(self, *argv):
         '''