Python-Excel: How to paste selected cells (range) to different location on the same sheet in Excel

[zxo102]

Hi there,
    I need your help for python <--> excel. I want to paste selected
cells (range) to different location on the same sheet in Excel through
python. I have tried it for a while but could not figure it out. Here
is my sample code:

import win32com.client
xl=win32com.client.Dispatch("Excel.Application")
xl.Visible=1
wb = xl.Workbooks.Add( )
sh=wb.Worksheets(1)
sh.Cells(1,1).Value = "Hello World!"
sh.Cells(3,3).Value = "Hello World!"
sh.Range(sh.Cells(1,1),sh.Cells(3,3)).Select()
sh.Range(sh.Cells(1,1),sh.Cells(3,3)).Copy()
# sh.Range(sh.Cells(4,1),sh.Cells(6,3)).Paste()

The last line of the code does not work.

Thanks you very much.

Ouyang