在Windows上检测插入的USB

是的，您需要使用RegisterDeviceNotification Windows API调用。 据我所知，没有包含这个功能的Python模块，所以你必须使用ctypes来调用这个函数。

幸运的是，你并不是第一个想做这件事的人，所以网上有一些代码示例。 WxPython提供了一个代码示例 ，但是当你正在编写一个守护进程时，你可能不会感兴趣。 你可能想要尝试下面的代码示例，它依赖于ctypes和pywin32 ，从Tim Golden中提升无耻：

 import win32serviceutil import win32service import win32event import servicemanager import win32gui import win32gui_struct struct = win32gui_struct.struct pywintypes = win32gui_struct.pywintypes import win32con GUID_DEVINTERFACE_USB_DEVICE = "{A5DCBF10-6530-11D2-901F-00C04FB951ED}" DBT_DEVICEARRIVAL = 0x8000 DBT_DEVICEREMOVECOMPLETE = 0x8004 import ctypes # # Cut-down clone of UnpackDEV_BROADCAST from win32gui_struct, to be # used for monkey-patching said module with correct handling # of the "name" param of DBT_DEVTYPE_DEVICEINTERFACE # def _UnpackDEV_BROADCAST (lparam): if lparam == 0: return None hdr_format = "iii" hdr_size = struct.calcsize (hdr_format) hdr_buf = win32gui.PyGetMemory (lparam, hdr_size) size, devtype, reserved = struct.unpack ("iii", hdr_buf) # Due to x64 alignment issues, we need to use the full format string over # the entire buffer. ie, on x64: # calcsize('iiiP') != calcsize('iii')+calcsize('P') buf = win32gui.PyGetMemory (lparam, size) extra = {} if devtype == win32con.DBT_DEVTYP_DEVICEINTERFACE: fmt = hdr_format + "16s" _, _, _, guid_bytes = struct.unpack (fmt, buf[:struct.calcsize(fmt)]) extra['classguid'] = pywintypes.IID (guid_bytes, True) extra['name'] = ctypes.wstring_at (lparam + struct.calcsize(fmt)) else: raise NotImplementedError("unknown device type %d" % (devtype,)) return win32gui_struct.DEV_BROADCAST_INFO(devtype, **extra) win32gui_struct.UnpackDEV_BROADCAST = _UnpackDEV_BROADCAST class DeviceEventService (win32serviceutil.ServiceFramework): _svc_name_ = "DevEventHandler" _svc_display_name_ = "Device Event Handler" _svc_description_ = "Handle device notification events" def __init__(self, args): win32serviceutil.ServiceFramework.__init__ (self, args) self.hWaitStop = win32event.CreateEvent (None, 0, 0, None) # # Specify that we're interested in device interface # events for USB devices # filter = win32gui_struct.PackDEV_BROADCAST_DEVICEINTERFACE ( GUID_DEVINTERFACE_USB_DEVICE ) self.hDevNotify = win32gui.RegisterDeviceNotification ( self.ssh, # copy of the service status handle filter, win32con.DEVICE_NOTIFY_SERVICE_HANDLE ) # # Add to the list of controls already handled by the underlying # ServiceFramework class. We're only interested in device events # def GetAcceptedControls(self): rc = win32serviceutil.ServiceFramework.GetAcceptedControls (self) rc |= win32service.SERVICE_CONTROL_DEVICEEVENT return rc # # Handle non-standard service events (including our device broadcasts) # by logging to the Application event log # def SvcOtherEx(self, control, event_type, data): if control == win32service.SERVICE_CONTROL_DEVICEEVENT: info = win32gui_struct.UnpackDEV_BROADCAST(data) # # This is the key bit here where you'll presumably # do something other than log the event. Perhaps pulse # a named event or write to a secure pipe etc. etc. # if event_type == DBT_DEVICEARRIVAL: servicemanager.LogMsg ( servicemanager.EVENTLOG_INFORMATION_TYPE, 0xF000, ("Device %s arrived" % info.name, '') ) elif event_type == DBT_DEVICEREMOVECOMPLETE: servicemanager.LogMsg ( servicemanager.EVENTLOG_INFORMATION_TYPE, 0xF000, ("Device %s removed" % info.name, '') ) # # Standard stuff for stopping and running service; nothing # specific to device notifications # def SvcStop(self): self.ReportServiceStatus (win32service.SERVICE_STOP_PENDING) win32event.SetEvent (self.hWaitStop) def SvcDoRun(self): win32event.WaitForSingleObject (self.hWaitStop, win32event.INFINITE) servicemanager.LogMsg ( servicemanager.EVENTLOG_INFORMATION_TYPE, servicemanager.PYS_SERVICE_STOPPED, (self._svc_name_, '') ) if __name__=='__main__': win32serviceutil.HandleCommandLine (DeviceEventService) 

好吧有一个简单的方法来找到USB设备在Windows机器上使用以下代码：

 def locate_usb(): import win32file drive_list = [] drivebits=win32file.GetLogicalDrives() for d in range(1,26): mask=1 << d if drivebits & mask: # here if the drive is at least there drname='%c:\\' % chr(ord('A')+d) t=win32file.GetDriveType(drname) if t == win32file.DRIVE_REMOVABLE: drive_list.append(drname) return drive_list 

代码实际上是从https://mail.python.org/pipermail/python-win32/2006-December/005406.html