[ClassTypes et Fields] Mise en commentaire des imports obsolètes et conformité pep8/pylint

EditorialModel/classtypes.py

 #       - 'attach' : what type of superior a type can have
 #            - 'classtype' a type can have superiors of the same classtype
 #            - 'type'      a type can only have superiors of the same type
-#       - automatic : possible superiors 
+#       - automatic : possible superiors
 #            - False : possible superiors must be defined
 #            - True  : possible superiors can not be defined, they will be enforced by the ME automatically
 #       - maxdepth : maximum depth
     @staticmethod
     def natures(classtype_name):
         if not isinstance(classtype_name, str):
-            raise TypeError("Excepted <class str> but got "+str(type(classtype_name)))
+            raise TypeError("Excepted <class str> but got %s" % str(type(classtype_name)))
         try:
             classtype = getattr(EmClassType, classtype_name)
         except AttributeError:
-            raise AttributeError("Unknown classtype : '"+classtype_name+"'")
+            raise AttributeError("Unknown classtype : '%s'" % classtype_name)
         return classtype['hierarchy'].keys()
-

EditorialModel/fields.py

 #-*- coding: utf-8 -*-
 
 from EditorialModel.components import EmComponent
-from EditorialModel.fieldtypes import EmField_boolean, EmField_char, EmField_integer, EmField_icon, get_field_type
-from EditorialModel.fieldgroups import EmFieldGroup
-from EditorialModel.classes import EmClass
+from EditorialModel.fieldtypes import EmField_boolean, EmField_char, EmField_integer, EmField_icon  # , get_field_type
+# from EditorialModel.fieldgroups import EmFieldGroup
+# from EditorialModel.classes import EmClass
 
-from Database import sqlutils
-from Database.sqlalter import DropColumn, AddColumn
+# from Database import sqlutils
+# from Database.sqlalter import DropColumn, AddColumn
+
+# import sqlalchemy as sql
 
-import sqlalchemy as sql
 
 ## EmField (Class)
 #
         # res = conn.execute(req)
         # row = res.fetchone()
         #</SQL>
-        # return EmClass(row['class_id'])
+        # return EmClass(row['class_id'])