python之win32pdh.EnumObjectItems 调用错误

我在 Windows 7 中运行 Python 2.7，安装了 pywin32-216-win32-py2.7。我正在运行以下代码，它在一台计算机上运行良好，但在另一台计算机上输出错误(Win7、Py2.7、相同的 pywin 库)。

错误信息:

File "C:\Energy\Support Sheets\Kill Excel.py", line 9, in GetProcessID items, instances = win32pdh.EnumObjectItems( None, None, object, win32pdh.PERF_DETAIL_WIZARD ) error: (-1073738824, 'EnumObjectItems for buffer size', 'The specified object was not found on the computer.')

完整代码:

import win32api, win32con 
import win32pdh 
import os 
import signal 
import time 
 
def GetProcessID( name ) : 
    object = "Process" 
    items, instances = win32pdh.EnumObjectItems( None, None, object, win32pdh.PERF_DETAIL_WIZARD ) 
    val = None 
    if name in instances : 
        hq = win32pdh.OpenQuery() 
        hcs = [ ] 
        item = "ID Process" 
        path = win32pdh.MakeCounterPath( ( None, object, name, None, 0, item ) ) 
        hcs.append( win32pdh.AddCounter( hq, path ) ) 
        win32pdh.CollectQueryData( hq ) 
        time.sleep( 0.01 ) 
        win32pdh.CollectQueryData( hq ) 
 
        for hc in hcs: 
            type, val = win32pdh.GetFormattedCounterValue( hc, win32pdh.PDH_FMT_LONG ) 
            win32pdh.RemoveCounter( hc ) 
        win32pdh.CloseQuery( hq ) 
        return val 
 
def Kill_Process_pid(pid): 
  handle = win32api.OpenProcess(win32con.PROCESS_TERMINATE, 0, pid) #get process handle 
  win32api.TerminateProcess(handle, -1) #kill by handle 
  win32api.CloseHandle(handle)        #close api 
 
def Kill_Process(name): 
    pid = GetProcessID(name) 
    if pid: 
        try: 
            Kill_Process_pid(pid) 
            return True 
        except: 
            pass 
    else: 
        return False 
 
# MAIN FUNCTION 
print 'Killing Excel instances...', 
while Kill_Process('EXCEL'): 
   time.sleep(0.2) 
print 'Done!' 

请您参考如下方法:

当进程性能计数器被禁用时，我遇到了同样的问题 - 显然这可能会发生。有说明here了解如何重新启用计数器。如果您无法在机器上安装软件，您可以运行 regedit 并搜索名为“Disable Performance Counters”的键并将其删除。

之后，您可能需要以管理员身份在 cmd shell 上运行“lodctr/R”以重新加载性能计数器，然后才能正常工作。