如何在 Windows 上以提升的权限运行 Python 脚本？

在 Windows 上以提升的权限运行脚本

在 Windows 中，某些任务需要提升的权限，这是指高于标准用户级别的权限。这对于某些管理操作可能是必要的，例如修改系统设置或访问受保护的文件。

要以提升的权限执行脚本，您可以使用 pyuac 等模块。该软件包的最新版本可以在 PyPi 和 GitHub 上找到。要使用 pip 安装它：

pip install pyuac
pip install pypiwin32

安装后，这里有一个有关如何使用 pyuac 的示例：

import pyuac

def main():
    print("Do stuff here that requires elevated privileges.")
    # The window will disappear as soon as the program exits!
    input("Press enter to close the window. >")

if __name__ == "__main__":
    if not pyuac.isUserAdmin():
        print("Re-launching as admin!")
        pyuac.runAsAdmin()
    else:        
        main()  # Already an admin here.

或者，如果您想使用装饰器：

from pyuac import main_requires_admin

@main_requires_admin
def main():
    print("Do stuff here that requires elevated privileges.")
    # The window will disappear as soon as the program exits!
    input("Press enter to close the window. >")

if __name__ == "__main__":
    main()

如果你不想使用额外的包，也可以参考Preston Landers提供的脚本。此脚本使您能够检查用户是否具有管理权限，如果没有，则请求 UAC 提升。以下是其用法示例：

import admin

if not admin.isUserAdmin():
    admin.runAsAdmin()

完整脚本的代码片段：

#!/usr/bin/env python
# -*- coding: utf-8; mode: python; py-indent-offset: 4; indent-tabs-mode: nil -*-
# vim: fileencoding=utf-8 tabstop=4 expandtab shiftwidth=4

 
import sys, os, traceback, types
 
def isUserAdmin():
   
    if os.name == 'nt':
        import ctypes
        # WARNING: requires Windows XP SP2 or higher!
        try:
            return ctypes.windll.shell32.IsUserAnAdmin()
        except:
            traceback.print_exc()
            print "Admin check failed, assuming not an admin."
            return False
    elif os.name == 'posix':
        # Check for root on Posix
        return os.getuid() == 0
    else:
        raise RuntimeError, "Unsupported operating system for this module: %s" % (os.name,)
   
def runAsAdmin(cmdLine=None, wait=True):
 
    if os.name != 'nt':
        raise RuntimeError, "This function is only implemented on Windows."
   
    import win32api, win32con, win32event, win32process
    from win32com.shell.shell import ShellExecuteEx
    from win32com.shell import shellcon
   
    python_exe = sys.executable
 
    if cmdLine is None:
        cmdLine = [python_exe] + sys.argv
    elif type(cmdLine) not in (types.TupleType,types.ListType):
        raise ValueError, "cmdLine is not a sequence."
    cmd = '"%s"' % (cmdLine[0],)
    # XXX TODO: isn't there a function or something we can call to massage command line params?
    params = " ".join(['"%s"' % (x,) for x in cmdLine[1:]])
    cmdDir = ''
    showCmd = win32con.SW_SHOWNORMAL
    #showCmd = win32con.SW_HIDE
    lpVerb = 'runas'  # causes UAC elevation prompt.
   
    # print "Running", cmd, params
 
    # ShellExecute() doesn't seem to allow us to fetch the PID or handle
    # of the process, so we can't get anything useful from it. Therefore
    # the more complex ShellExecuteEx() must be used.
 
    # procHandle = win32api.ShellExecute(0, lpVerb, cmd, params, cmdDir, showCmd)
 
    procInfo = ShellExecuteEx(nShow=showCmd,
                              fMask=shellcon.SEE_MASK_NOCLOSEPROCESS,
                              lpVerb=lpVerb,
                              lpFile=cmd,
                              lpParameters=params)
 
    if wait:
        procHandle = procInfo['hProcess']    
        obj = win32event.WaitForSingleObject(procHandle, win32event.INFINITE)
        rc = win32process.GetExitCodeProcess(procHandle)
        #print "Process handle %s returned code %s" % (procHandle, rc)
    else:
        rc = None
 
    return rc
 
def test():
    rc = 0
    if not isUserAdmin():
        print "You're not an admin.", os.getpid(), "params: ", sys.argv
        #rc = runAsAdmin(["c:\Windows\notepad.exe"])
        rc = runAsAdmin()
    else:
        print "You are an admin!", os.getpid(), "params: ", sys.argv
        rc = 0
    x = raw_input('Press Enter to exit.')
    return rc
 
 
if __name__ == "__main__":
    sys.exit(test())

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