It is true that by using win32 extension python modules, such as win32api, win32con, and win32security, we can easily shutdown the computer with a few steps. However, sometimes your python's runtime environment does not provide win32com module (because it is not a build-in module), we may have to shutdown the pc on our own.
By using ctypes, we are still able to shutdown or reboot the PC easily.
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The MIT License
Copyright 2009 Shao-Chuan Wang <shaochuan.wang@gmail.com>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
"""
__author__ = "Shao-Chuan Wang"
__email__ = "shaochuan.wang@gmail.com"
__version__ = "1.0"
__URL__ = "http://shao-chuan.appspot.com"
import ctypes
from ctypes import Structure
from ctypes import byref
import ctypes.wintypes as wintypes
SE_PRIVILEGE_ENABLED = 2
SE_SHUTDOWN_NAME = 'SeShutdownPrivilege'
TOKEN_ALL_ACCESS = 0xf00ff
TOKEN_ADJUST_PRIVILEGES = 0x20
host = None #: it means local machine.
class LUID(Structure):
_fields_ = [("LowPart", wintypes.DWORD),
("HighPart", wintypes.LONG)]
class LUID_AND_ATTRIBUTES(Structure):
_fields_ = [("Luid", LUID),
("Attributes", wintypes.DWORD)]
class TOKEN_PRIVILEGES(Structure):
_fields_ = [("PrivilegeCount", wintypes.DWORD),
("Privileges", LUID_AND_ATTRIBUTES)]
def shutdown(msg, timeout, force=False, reboot=True):
advapi32 = ctypes.windll.advapi32
kernel32 = ctypes.windll.kernel32
luid = LUID()
if not advapi32.LookupPrivilegeValueA(None, SE_SHUTDOWN_NAME, byref(luid)):
print 'LookupPrivilegeValueA failed.'
attr = LUID_AND_ATTRIBUTES(luid, SE_PRIVILEGE_ENABLED)
privilegeCount = 1
tokenPrivileges = TOKEN_PRIVILEGES(privilegeCount, attr)
p = kernel32.GetCurrentProcess()
hToken = wintypes.HANDLE()
if not advapi32.OpenProcessToken(p, TOKEN_ADJUST_PRIVILEGES, byref(hToken)):
print 'OpenProcessToken failed.'
return False
if not advapi32.AdjustTokenPrivileges(hToken, False, byref(tokenPrivileges), None, None, None):
print 'AdjustTokenPrivileges failed.'
return False
if not advapi32.InitiateSystemShutdownA(host, msg, timeout, force, reboot):
print 'InitiateSystemShutdownA failed.'
return False
return True
if __name__ == '__main__':
# to cancel the shutdown, just type 'shudown -a' in your terminal.
shutdown('This computer is about to shutdown...', 20)
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