Apply pylint rules on callback.py and my_validators.py.

modules/callbacks.py

@@ -7,23 +7,27 @@ from gluon import current
 from plugin_dbui import CALLBACK_ERRORS, get_where_query
 
 
-def INHIBIT_CASCADE_DELETE(set):
+MSG_INHIBIT_DELETE = \
+    "Can't delete this record since several transactions refer to it."
+
+
+def INHIBIT_CASCADE_DELETE(myset):
     """Inhibit the delete when at least one history row uses
     the reference field.
 
-    @type set: gluon.dal.Set
-    @param set:
+    @type myset: gluon.dal.Set
+    @param myset:
 
     @rtype: bool
     @return:
 
     """
     db, T = current.globalenv['db'], current.T
-    field = set.query.first
+    field = myset.query.first
 
     # protection
     # the query of the set should be "table.id == 45"
-    if field._db._adapter.EQ != set.query.op:
+    if field._db._adapter.EQ != myset.query.op:
         return False
 
     # protection
@@ -40,11 +44,10 @@ def INHIBIT_CASCADE_DELETE(set):
 
     # inhibit the delete if at least one history row use the reference field
     query = get_where_query(db.history)
-    query = (query) & (set.query)
+    query = (query) & (myset.query)
 
     if db(query).count():
-        field._table[CALLBACK_ERRORS] = \
-        T("Can't delete this record since several transactions refer to it.")
+        field._table[CALLBACK_ERRORS] = T(MSG_INHIBIT_DELETE)
         return True
 
-    return False
\ No newline at end of file
+    return False

modules/my_validators.py

@@ -11,7 +11,6 @@ class IS_IN_USET(IS_IN_SET):
     """IS_IN_SET validator but working with unicode string.
 
     """
-
     def __init__(self, theset, **kwargs):
 
         myset = []
@@ -32,7 +31,6 @@ class IS_IN_USET(IS_IN_SET):
 
         IS_IN_SET.__init__(self, myset, **kwargs)
 
-
     def __call__(self, value):
 
         if isinstance(value, unicode):