Getting and setting the clipboard in Windows

[Stephen Boulet]

I'm using the following code in clipboard.py. The problem is that it 
sets the clipboard text correctly sometimes and sometimes doesn't alter 
it at all. What am I doing wrong?

import win32clipboard,sys

def getclipboard():	
....# Get current string from clipboard. If string empty, error out.
....win32clipboard.OpenClipboard(0)
....if win32clipboard.IsClipboardFormatAvailable(win32clipboard.CF_TEXT):
........s = win32clipboard.GetClipboardData(win32clipboard.CF_TEXT)
........win32clipboard.CloseClipboard()
....else:
........win32clipboard.CloseClipboard()
........from wxMessageBox import showerror
........showerror('Error!','No text on clipboard')
........sys.exit()
....return s

def setclipboard(s):
....# Paste string to clipboard
....win32clipboard.OpenClipboard(0)
....win32clipboard.EmptyClipboard()
....win32clipboard.SetClipboardText(s)
....win32clipboard.CloseClipboard()

Stephen