Comment supprimer un dossier en Python en présence de l'[Erreur 32] ?

J'utilise Python 2.7. Je veux supprimer un dossier qui peut ou non être vide. Ce dossier est géré par un thread pour le suivi des fichiers. Je ne suis pas en mesure de tuer le thread, mais je veux supprimer ce dossier de toute façon. J'ai essayé avec :

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

...mais ça n'a pas marché. Il affiche cette erreur :
[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'
Je veux supprimer le dossier a0c433973524de528420bbd56f8ede609e6ea700 ou supprimer tout le chemin suffira également.

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)