如何在Windows上以提升的特权运行python脚本

  • Z时代
  • 2024-01-10
  • 分类：问答

我正在编写一个需要执行管理任务的pyqt应用程序。我希望以提升的特权启动脚本。我知道这个问题在SO或其他论坛中被问过很多次。但是人们建议的解决方案是看看这个SO问题 从Python脚本中请求UAC提升吗？

但是，我无法执行链接中给出的示例代码。我已将此代码放在主文件之上，并尝试执行它。

import os
import sys
import win32com.shell.shell as shell
ASADMIN = 'asadmin'
if sys.argv[-1] != ASADMIN:
    script = os.path.abspath(sys.argv[0])
    params = ' '.join([script] + sys.argv[1:] + [ASADMIN])
    shell.ShellExecuteEx(lpVerb='runas', lpFile=sys.executable, lpParameters=params)
    sys.exit(0)
print "I am root now."

它实际上请求提升权限，但打印行从未执行。有人可以帮助我成功运行以上代码。提前致谢。

回答：

我的脚本可以与Preston Landers于2010年编写的模块/脚本一起使用。经过两天的互联网浏览后，我发现了该脚本，因为该脚本已深深地藏在pywin32邮件列表中。使用此脚本，可以更轻松地检查用户是否为admin，如果不是，则询问UAC / admin权限。它确实在单独的窗口中提供输出，以找出代码在做什么。脚本中还包含有关如何使用代码的示例。为了所有人在Windows上寻找UAC的利益，请查看以下代码。我希望它可以帮助寻求相同解决方案的人。在你的主脚本中可以使用以下命令：

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

实际的代码是：

#!/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
# (C) COPYRIGHT © Preston Landers 2010
# Released under the same license as Python 2.6.5
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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