Python --- 查找当前或上次登录的用户

Question

我正在尝试查找当前或上次登录的用户

部分脚本

# userIP has been defined
# try to access wmi

try:
    c = wmi.WMI(userIP)
except: 
    print "Cannot access WMI for", userIP
    sys.exit()


for os in c.Win32_OperatingSystem():
    print os.Caption

for us in c.Win32_LogonSession():
    print us.LogonId

我得到以下输出

Microsoft Windows 7 Enterprise
999
997
996
4831418
8883496
8883473
8883457
8883437
671914

这些数字是否代表最近和当前登录的用户？如何将它们转换为 DOMAIN\username 格式？如果可以转换，如何获取最新用户？

编辑

我试过了

for us in c.Win32_LogonSession():
    for user in us.references("Win32_LoggedOnUser"):
        print(user.Antecedent)

但是我得到错误

Traceback (most recent call last):
  File ".\lookup.py", line 48, in <module>
    print(user.Antecedent)
  File "D:\Python27\lib\site-packages\wmi.py", line 555, in __getattr__
    return WMI (moniker=value)
  File "D:\Python27\lib\site-packages\wmi.py", line 1290, in connect
    handle_com_error ()
  File "D:\Python27\lib\site-packages\wmi.py", line 241, in handle_com_error
    raise klass (com_error=err)
wmi.x_wmi: <x_wmi: Unexpected COM Error (-2147217406, 'OLE error 0x80041002', No
ne, None)>

然后我试了一下

for us in c.Win32_LogonSession():
    for user in us.references("Win32_LoggedOnUser"):
        print(user.Antecedent.Domain, user.Antecedent.Name, sep="\\")

但是我得到了错误

  File ".\lookup.py", line 48
    print(user.Antecedent.Domain, user.Antecedent.Name, sep="\\")
                                                           ^
SyntaxError: invalid syntax

如何解决这些问题？

Answer 1

您必须深入挖掘才能获得附加信息。不幸的是，我不记得我的来源:

for us in c.Win32_LogonSession():
    for user in us.references("Win32_LoggedOnUser"):
        print(user.Antecedent)

您也可以从中打印属性，例如将最后一行替换为:

print(user.Antecedent.Domain, user.Antecedent.Name, sep="\\")

我得到:

MyPC\nerdwaller

编辑

我应该提到两件事:

1. 我正在使用 Python3，因此您可以在 python 2.x 中将 print 用作函数:

   from __future__ import print_function

2. 如您所见，问题反复出现。有多种解决方案，由于我不知道您的用例...不是最干净的解决方案，您可以将其包装在 try/catch 中:

for us in c.Win32_LogonSession():
    try:
        for user in us.references("Win32_LoggedOnUser"):
            print(user.Antecedent)
    except:
        pass