Wx Grid: How to override GetRowGridLinePen and GetColGridLinePen

[Sanjeev]

Hi,

Contrary to the documentation, I am not able to set the Grid lines with
different thickness by overriding the the GetRowGridLinePen and
GetColGridLinePen methods.

I am running wxPython 2.8.4.0 (gtk2-unicode) and Python 2.5.1 (r251:54863, Oct 
5 2007, 13:36:32)on Ubuntu 7.10

Please see my example code below. The two print statements in the code are not
getting hit! Could you please tell me what is missing here.

Thanks,
Sanjeev

#!/usr/bin/python
import string
import wx
from wx.grid import Grid

class myGrid(Grid):
    def  __init__(self, parent, id):
        Grid.__init__(self, parent,id, wx.Point(10,10),
wx.Size(400,200),wx.TE_MULTILINE)
    def GetRowGridLinePen(self, row):
        print "calling GetRowGridLinePen"
        if row % 3 == 0:
            return wx.Pen(wx.BLACK, 1, wx.SOLID)
        else:
            return self.GetDefaultGridLinePen()

    def GetColGridLinePen(self, col):
        print "calling GetColGridLinePen"
        if col % 3 == 0:
            return wx.Pen(wx.BLACK, 1, wx.SOLID)
        else:
            return self.GetDefaultGridLinePen()

class myPanel(wx.Panel):
    def __init__(self, parent, id):
        wx.Panel.__init__(self, parent, id)
        self.output = myGrid(self,6)
        self.output.CreateGrid(3,3)

class myFrame(wx.Frame):
    def __init__(self, parent, id, title):
        wx.Frame.__init__(self, parent, id, title, size=(400, 200))
        self.panel = myPanel(self, -1)
        self.Show(True)


app = wx.App()
myFrame(None, -1, 'Example')
app.MainLoop()