Mercurial Repositories > eric / file diff

--- a/Helpviewer/OfflineStorage/WebDatabasesModel.py	Thu Mar 23 18:58:56 2017 +0100
+++ b/Helpviewer/OfflineStorage/WebDatabasesModel.py	Thu Mar 23 19:06:13 2017 +0100
@@ -35,7 +35,7 @@
         for origin in QWebSecurityOrigin.allOrigins():
             self.__data.append([origin, origin.databases()])
     
-    def removeRows(self, row, count, parent=QModelIndex()):
+    def removeRows(self, row, count, parent=None):
         """
         Public method to remove databases from the model.
         
@@ -44,6 +44,9 @@
         @param parent index of the security origin (QModelIndex)
         @return flag indicating successful removal (boolean)
         """
+        if parent is None:
+            parent = QModelIndex()
+        
         if row < 0 or count <= 0 or row + count > self.rowCount(parent):
             return False
         
@@ -122,25 +125,31 @@
                 elif index.column() == 1:
                     return self.__dataString(db.size())
     
-    def columnCount(self, parent=QModelIndex()):
+    def columnCount(self, parent=None):
         """
         Public method to get the number of columns.
         
         @param parent index of parent (QModelIndex)
         @return number of columns (integer)
         """
+        if parent is None:
+            parent = QModelIndex()
+        
         if parent.column() > 0:
             return 0
         else:
             return len(self.__headers)
     
-    def rowCount(self, parent=QModelIndex()):
+    def rowCount(self, parent=None):
         """
         Public method to determine the number of rows.
         
         @param parent index of parent (QModelIndex)
         @return number of rows (integer)
         """
+        if parent is None:
+            parent = QModelIndex()
+        
         if parent.column() > 0:
             return 0
         
@@ -149,7 +158,7 @@
         else:
             return len(self.__data[parent.row()][1])
     
-    def index(self, row, column, parent=QModelIndex()):
+    def index(self, row, column, parent=None):
         """
         Public method to get a model index for an entry.
         
@@ -158,6 +167,9 @@
         @param parent index of the parent (QModelIndex)
         @return index (QModelIndex)
         """
+        if parent is None:
+            parent = QModelIndex()
+        
         if row < 0 or column < 0 or \
            row >= self.rowCount(parent) or column >= self.columnCount(parent):
             return QModelIndex()
@@ -167,13 +179,16 @@
         else:
             return self.createIndex(row, column, sys.maxsize)
     
-    def parent(self, index=QModelIndex()):
+    def parent(self, index=None):
         """
         Public method to get the index of the parent entry.
         
         @param index index of the child entry (QModelIndex)
         @return index of the parent entry (QModelIndex)
         """
+        if index is None:
+            index = QModelIndex()
+        
         if not index.isValid():
             return QModelIndex()
         
@@ -182,13 +197,16 @@
         
         return self.createIndex(index.internalId(), 0)
     
-    def hasChildren(self, parent=QModelIndex()):
+    def hasChildren(self, parent=None):
         """
         Public method to check, if a parent node has some children.
         
         @param parent index of the parent node (QModelIndex)
         @return flag indicating the presence of children (boolean)
         """
+        if parent is None:
+            parent = QModelIndex()
+        
         if not parent.isValid():
             return True