def __init__(self, gapWidth=150, overlap=None, serLines=None, extLst=None, **kw):
    self.gapWidth = gapWidth
    self.overlap = overlap
    self.serLines = serLines
    self.x_axis = TextAxis()
    self.y_axis = NumericAxis()
    self.legend = Legend()
    super(BarChart, self).__init__(**kw)
def __init__(self, gapWidth=150, overlap=None, serLines=None, extLst=None, **kw):
    self.gapWidth = gapWidth
    self.overlap = overlap
    self.serLines = serLines
    self.x_axis = TextAxis()
    self.y_axis = NumericAxis()
    self.legend = Legend()
    super(BarChart, self).__init__(**kw)