code: def __set_style_sheet(self):
          
  
          frame_width = self.style().pixelMetric(QStyle.PM_DefaultFrameWidth)
          self.setStyleSheet(QString("QLineEdit {{ padding-left: {0}px; padding-right: {1}px; }}".format(
              self.__search_active_label.sizeHint().width(
              ) if self.__search_active_label.isVisible() else 0 + frame_width,
              self.__clear_button.sizeHint().width() + frame_width)))
docs: Sets the Widget stylesheet.