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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Wed, 17 Oct 2012 11:47:12 -0600
Subject: Re: Change computername
To: Python <python-list@python.org>
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On Wed, Oct 17, 2012 at 8:07 AM, Anatoli Hristov <tolidtm@gmail.com> wrote:
> Hello,
>
> Can you please help me out how can I change the computername of
> windows XP with or without the "WIN32" module ?

Untested:

from ctypes import *

ComputerNamePhysicalDnsHostname = 5

computer_name = u'COMPUTER'

success = windll.kernel32.SetComputerNameExW(ComputerNamePhysicalDnsHostname,
                                             computer_name)
if success:
    print("Name changed")
else:
    print("Failed")

The process will need admin rights, and the computer will need to be
rebooted before the change will take effect.