Sets the row separator function, which is used to determine whether a row should be drawn as a separator. If the row separator function is null, no separators are drawn. This is the default value.
a gtk.tree_view.TreeViewRowSeparatorFunc
Deprecated: Use gtk.list_view.ListView or gtk.column_view.ColumnView instead
Sets the row separator function, which is used to determine whether a row should be drawn as a separator. If the row separator function is null, no separators are drawn. This is the default value.