How to override PyGridTableBase.SetColLabelValue()?

[fckuen at gmail.com]

Dear all,

the doc is missing, and
i failed to find the solution on google search.
anyone know how to override
the function SetColLabel() inside the class PyGridTableBase or the
class GridTableBase?

my code,
#===========================================
class MegaTable(wx.grid.PyGridTableBase):
def __init__(...)
.....
wx.grid.PyGridTableBase.__init__(self)

def SetColLabelValue(self, col, value):
value = self.coltags[col]
-->how to ???

class MegaGrid(wx.grid.Grid):
def __init__(...)
.....
wx.grid.Grid.__init__(self, parent, id)
self._table = MegaTable(self, .....)
self.SetTable(self._table)
.....
#===========================================


thanks!