OSError: [WinError 123] 文件名、目录名或卷标语法不正确尝试从驱动器访问图像数据集时出错

如何解决OSError: [WinError 123] 文件名、目录名或卷标语法不正确尝试从驱动器访问图像数据集时出错

我正在尝试通过 jupyter notebook 中的以下代码访问保存在我的谷歌驱动器中的数据集（并计算图像数量），但我不断收到此错误。出于安全原因，我无法使用 google colab。数据集有 17 个文件夹，每个文件夹中都有 200 多张图片，因此我也无法下载。

代码：

/* NOTE: This approach demonstrates how to recreate streams when
         your listeners are being recreated.
         It is useful when you cannot or do not want to use broadcast
         streams. Downside to broadcast streams is that it is not
         guaranteed that your listener will receive values emitted
         by the stream before it was registered.
*/

import 'dart:async';
import 'dart:math';

// [StreamService] manages state of your streams. Each listener
// must have id which is used in [_streamControllers] map to
// look up relevant stream controller.
class StreamService {
  final Map<String,StreamController<int>?> _streamControllers = {};

  Stream<int> getNamedStream(String id) {
    final controller = _getController(id);
    return controller.stream;
  }

  // Will get existing stream controller by [id] or create a new
  // one if it does not exist
  StreamController<int> _getController(String id) {
    final controller = _streamControllers[id] ?? _createController();

    _streamControllers[id] = controller;

    return controller;
  }

  void push(String id) {
    final controller = _getController(id);

    final rand = Random();
    final value = rand.nextInt(1000);

    controller.add(value);
  }

  // This method can be called by listener so
  // memory leaks are avoided. This is a cleanup
  // method that will make sure the stream controller
  // is removed safely
  void disposeController(String id) {
    final controller = _streamControllers[id];

    if (controller == null) {
      throw Exception('Controller $id is not registered.');
    }

    controller.close();
    _streamControllers.remove(id);
    print('Removed controller $id');
  }

  // This method should be called when you want to remove
  // all controllers. It should be called before the instance
  // of this class is garbage collected / removed from memory.
  void dispose() {
    _streamControllers.forEach((id,controller) {
      controller?.close();
      print('Removed controller $id during dispose phase');
    });
    _streamControllers.clear();
  }

  StreamController<int> _createController() {
    return StreamController<int>();
  }
}

class ManagedListener {
  ManagedListener({
    required this.id,required StreamService streamService,}) {
    _streamService = streamService;
  }

  final String id;
  late StreamService _streamService;
  StreamSubscription<int>? _subscription;

  void register() {
    _subscription = _streamService.getNamedStream(id).listen(_handleStreamChange);
  }

  void dispose() {
    _subscription?.cancel();
    _streamService.disposeController(id);
  }

  void _handleStreamChange(int n) {
    print('[$id]: streamed $n');
  }
}

void main(List<String> arguments) async {
  final streamService = StreamService();

  final listener1Id = 'id_1';
  final listener2Id = 'id_2';

  final listener1 = ManagedListener(id: listener1Id,streamService: streamService);
  listener1.register();
  
  streamService.push(listener1Id);
  streamService.push(listener1Id);
  streamService.push(listener1Id);

  await Future.delayed(const Duration(seconds: 1));

  final listener2 = ManagedListener(id: listener2Id,streamService: streamService);
  listener2.register();

  streamService.push(listener2Id);
  streamService.push(listener2Id);

  await Future.delayed(const Duration(seconds: 1));
  
  listener1.dispose();
  listener2.dispose();

  streamService.dispose();
}

错误：

dataset='https://drive.google.com/drive/folders/16BXzy3nAGRJAH5j23Z38eG3npsSIqHEf?usp=sharing'

data_dir = pathlib.Path(dataset)

image_count = len(list(data_dir.glob('*/*.jpg')))

print(image_count)

解决方法

看起来您正在尝试使用 os 模块连接远程位置。错误说 -

错误：OSError：[WinError 123] 文件名、目录名或卷 标签语法不正确：

请尝试使用 Google API 代码连接 Google Drive，并使用相应的端点调用操作。

API 代码： https://developers.google.com/drive/api/v3/quickstart/python

端点列表： https://developers.google.com/resources/api-libraries/documentation/drive/v3/python/latest/drive_v3.files.html