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当出现 [错误 32] 时如何在 Python 中删除文件夹

tag-icon • tag-icon windows python multi-threaded file-monitoring
当出现 [错误 32] 时如何在 Python 中删除文件夹

我使用的是 Python 2.7。我想删除一个可能为空也可能不为空的文件夹。该文件夹由文件监控线程处理。我无法终止该线程，但无论如何都想删除此文件夹。我尝试过：

os.rmdir(Location)
shutil.rmtree(Location) 
os.unlink(Location)

...但是，它不起作用。它显示此错误：
[Error 32] The process cannot access the file because it is being used by another process: 'c:\\users\\cipher~1\\appdata\\local\\temp\\fis\\a0c433973524de528420bbd56f8ede609e6ea700'
我想删除文件夹a0c433973524de528420bbd56f8ede609e6ea700或删除整个路径也可以。

class myThread (threading.Thread):
    def __init__(self, threadID, fileName, directory, origin):
        threading.Thread.__init__(self)
        self.threadID = threadID
        self.fileName = fileName
        self.daemon = True
        self.dir = directory
        self.originalFile = origin
    def run(self):
        startMonitor(self.fileName, self.dir, self.originalFile)

def startMonitor(fileMonitoring,dirPath,originalFile):
    logging.debug("in startMonitor")
    hDir = win32file.CreateFile (
      dirPath,
      FILE_LIST_DIRECTORY,
      win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE,
      None,
      win32con.OPEN_EXISTING,
      win32con.FILE_FLAG_BACKUP_SEMANTICS,
      None
    )
    logging.debug("Wait for new data and call ProcessNewData for each new chunk that's written")
    readFlags = win32con.FILE_NOTIFY_CHANGE_FILE_NAME  | \
            win32con.FILE_NOTIFY_CHANGE_DIR_NAME   | \
            win32con.FILE_NOTIFY_CHANGE_ATTRIBUTES | \
            win32con.FILE_NOTIFY_CHANGE_SIZE       | \
            win32con.FILE_NOTIFY_CHANGE_LAST_WRITE | \
            win32con.FILE_NOTIFY_CHANGE_SECURITY
    # Wait for new data and call ProcessNewData for each new chunk that's written
    while 1:
        # Wait for a change to occur
        results = win32file.ReadDirectoryChangesW (
                                                   hDir,
                                                   1024,
                                                   False,
                                                   readFlags,
                                                   None
                                                   )
        # For each change, check to see if it's updating the file we're interested in
        logging.debug("For each change, check to see if it's updating the file we're interested in")
        for action, file_M in results:
            full_filename = os.path.join (dirPath, file_M)
            #print file, ACTIONS.get (action, "Unknown")
            if len(full_filename) == len(fileMonitoring) and action == 3:
                #copy to main file
                if os.path.exists(originalFile):
                        encrypt_file(key,fileMonitoring,originalFile,iv)

 try:
        thread1 = myThread(1, FileName, Location,selectedFileName)
        thread1.start();
        startupinfo = None
        if os.name == 'nt':
            startupinfo = subprocess.STARTUPINFO()
            startupinfo.dwFlags |= subprocess._subprocess.STARTF_USESHOWWINDOW
            logging.debug("control to file open subprocess")
            ss=subprocess.Popen(FileName,shell=True)
            ss.communicate()


            logging.debug("file open subprocess executed")
            removeTempFile(FileName)
            logging.debug("file removed")
            shutil.rmtree(Location) #to remove folder, I asked question for this ony.
            sys.exit(0)
    except Exception as e:
        print e
        logging.error(e)
        logging.debug("exception in encryption Thread")
        removeTempFile(FileName)
        sys.exit(e)

答案1

Windows 使用锁定。您无法删除另一个进程正在使用的文件或文件夹。某些类型的锁也会影响同一进程内的其他线程。我担心您必须终止监视线程或将其转移到另一个目录，然后才能删除此目录。

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