HYTOS

        try:

            app_doc_data = AppDocData.instance()

            drawings = app_doc_data.getDrawings()

            self.treeWidgetDrawingList.clear()

            self.treeWidgetDrawingList.root = QTreeWidgetItem(self.treeWidgetDrawingList,

                x = [drawing for drawing in drawings if drawing.name == file]

                if not x or not x[0].UID:

                    drawing = Drawing(None, file, None)

                else:

                    drawing = x[0]

            #self.treeWidgetDrawingList.root.sortChildren(0, Qt.AscendingOrder)

            self.treeWidgetDrawingList.resizeColumnToContents(0)

        except Exception as ex:

            message = 'error occurred({}) in {}:{}'.format(repr(ex), sys.exc_info()[-1].tb_frame.f_code.co_filename,

                                                           sys.exc_info()[-1].tb_lineno)