CODEWITHSUNDEEP
pythonwindowssleepsuspend
lhk
lhk

Reputation: 30256

Sleep / Suspend / Hibernate Windows PC

I'd like to write a short python script that puts my computer to sleep. I'Ve already searched the API but the only result on suspend has to do with delayed execution. What function does the trick ?

Upvotes: 6

Views: 13684

Answers (6)

Glaslos
Glaslos

Reputation: 2923

Get pywin32, it also contains win32security if I remember correctly. Then try the mentioned script again.

Upvotes: 2

Ben James
Ben James

Reputation: 125327

If you're using Windows, see this gmane.comp.python.windows newsgroup post by Tim Golden.

Upvotes: 1

Ben Deery
Ben Deery

Reputation: 1

subprocess.call(['osascript', '-e','tell app "System Events" to sleep'])

Upvotes: 0

Ronan Paixão
Ronan Paixão

Reputation: 8695

Without resorting to shell execution, if you have pywin32 and ctypes:

import ctypes
import win32api
import win32security

def suspend(hibernate=False):
    """Puts Windows to Suspend/Sleep/Standby or Hibernate.

    Parameters
    ----------
    hibernate: bool, default False
        If False (default), system will enter Suspend/Sleep/Standby state.
        If True, system will Hibernate, but only if Hibernate is enabled in the
        system settings. If it's not, system will Sleep.

    Example:
    --------
    >>> suspend()
    """
    # Enable the SeShutdown privilege (which must be present in your
    # token in the first place)
    priv_flags = (win32security.TOKEN_ADJUST_PRIVILEGES |
                  win32security.TOKEN_QUERY)
    hToken = win32security.OpenProcessToken(
        win32api.GetCurrentProcess(),
        priv_flags
    )
    priv_id = win32security.LookupPrivilegeValue(
       None,
       win32security.SE_SHUTDOWN_NAME
    )
    old_privs = win32security.AdjustTokenPrivileges(
        hToken,
        0,
        [(priv_id, win32security.SE_PRIVILEGE_ENABLED)]
    )

    if (win32api.GetPwrCapabilities()['HiberFilePresent'] == False and
        hibernate == True):
            import warnings
            warnings.warn("Hibernate isn't available. Suspending.")
    try:
        ctypes.windll.powrprof.SetSuspendState(not hibernate, True, False)
    except:
        # True=> Standby; False=> Hibernate
        # https://msdn.microsoft.com/pt-br/library/windows/desktop/aa373206(v=vs.85).aspx
        # says the second parameter has no effect.
#        ctypes.windll.kernel32.SetSystemPowerState(not hibernate, True)
        win32api.SetSystemPowerState(not hibernate, True)

    # Restore previous privileges
    win32security.AdjustTokenPrivileges(
        hToken,
        0,
        old_privs
    )

If you want just a one-liner with pywin32 and has the right permissions already (for a simple, personal script):

import win32api
win32api.SetSystemPowerState(True, True)  # <- if you want to Suspend
win32api.SetSystemPowerState(False, True)  # <- if you want to Hibernate

Note: if your system has disabled hibernation, it will suspend. In the first function I included a check to at least warn of this.

Upvotes: 6

Peter pete
Peter pete

Reputation: 712

I don't know how to sleep. But I know how to Hibernate (on Windows). Perhaps that is enough? shutdown.exe is your friend! Run it from the command prompt.

To see its options do shutdown.exe /?

I believe a hibernate call would be: shutdown.exe /h

So, putting it all together in python:

import os
os.system("shutdown.exe /h")

But as other have mentioned, it is bad to use os.system. Use the popen instead. But, if you're lazy like me and its a little script them meh! os.system it is for me.

Upvotes: 13

vikernesPT
vikernesPT

Reputation: 21

import os
os.system(r'rundll32.exe powrprof.dll,SetSuspendState Hibernate')

Upvotes: 2

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