@property
    def first(self):
        return self[0]
Handle the selected row/column/cell being changed externally.
dataset/ETHPy150Open cobrateam/splinter/splinter/element_list.py/ElementList.first--crossover with--dataset/ETHPy150Open enthought/traitsui/traitsui/qt4/table_editor.py/TableEditor._selected_changed