Please help me with setting size of a cell on a grid where the grid uses PyGridTableBase

Dear Sirs,

I’m trying to achive to set size of a grid cell, where the grid uses PyGridTableBase as datra source. I tried it on an example from the demo below, but I can’t set size (span cells acros multiple columns) in this grid. In the following example, when user right clicks on a cell, it is supposed to set size of cell on row 0 col 1 to 1 row and 4 columns (this cell will span over 4 columns), but it doesn’t work. What should I change below???

import wx
import wx.grid as gridlib

···

#---------------------------------------------------------------------------

class HugeTable(gridlib.PyGridTableBase):

def __init__(self, log):
    gridlib.PyGridTableBase.__init__(self)
    self.log = log

    self.odd=gridlib.GridCellAttr()
    self.odd.SetBackgroundColour("sky blue")
    self.even=gridlib.GridCellAttr()
    self.even.SetBackgroundColour("sea green")

    self.atts = {}

def GetAttr(self, row, col, kind):
    #attr = [self.even, self.odd][row % 2]
    attr = gridlib.GridCellAttr()
    #print "sttr: ", attr
    attr.IncRef()
    self.atts[(row,col)] = attr
    return self.atts[(row,col)]

def SetAttr(self,attr,row,col):
    self.atts[(row,col)] = attr


# This is all it takes to make a custom data table to plug into a
# wxGrid.  There are many more methods that can be overridden, but
# the ones shown below are the required ones.  This table simply
# provides strings containing the row and column values.

def GetNumberRows(self):
    return 1

def GetNumberCols(self):
    return 10

def IsEmptyCell(self, row, col):
    return False

def GetValue(self, row, col):
    return str( (row, col) )

def SetValue(self, row, col, value):
    self.log.write('SetValue(%d, %d, "%s") ignored.\n' % (row, col, value))

#---------------------------------------------------------------------------

class HugeTableGrid(gridlib.Grid):
def init(self, parent, log):
gridlib.Grid.init(self, parent, -1)

    self.table = HugeTable(log)

    # The second parameter means that the grid is to take ownership of the
    # table and will destroy it when done.  Otherwise you would need to keep
    # a reference to it and call it's Destroy method later.
    self.SetTable(self.table, True)

    self.Bind(gridlib.EVT_GRID_CELL_RIGHT_CLICK, self.OnRightDown) 

def OnRightDown(self, event):
    print "hello"
    attr = self.table.GetAttr(0,1, gridlib.GridCellAttr.Any)
    attr.SetSize(0,4)
    self.table.SetAttr(attr,0,1)

#---------------------------------------------------------------------------

class TestFrame(wx.Frame):
def init(self, parent, log):
wx.Frame.init(self, parent, -1, “Huge (virtual) Table Demo”, size=(640,480))
grid = HugeTableGrid(self, log)

    grid.SetReadOnly(5,5, True)

#---------------------------------------------------------------------------

if name == ‘main’:
import sys
print wx.version
app = wx.PySimpleApp()
frame = TestFrame(None, sys.stdout)
frame.Show(True)
app.MainLoop()