win10直接运行train.py 报错。微信nlanguage ForkingPickler(file, protocol).dump(obj) TypeError: cannot pickle 'Font' object

[nissansz]

win10直接运行train.py 报错。微信nlanguage

C:\Users\Ni\AppData\Local\Programs\Python\Python38\python.exe F:/pycharm2020.2/crnn.pytorch_generator/train_Sentence.py
Namespace(batch_size=32, device='cuda', direction='horizontal', dist_backend='nccl', dist_url='env://', distributed=False, epochs=1, init_epoch=0, local_rank=0, lr=0.01, lr_gamma=0.1, lr_step_size=30, momentum=0.9, output_dir='./output', sync_bn=False, weight_decay=1e-05, workers=4, world_size=1)
0%| | 0/95804 [00:47<?, ?it/s]
Traceback (most recent call last):
File "", line 1, in
Traceback (most recent call last):
File "F:/pycharm2020.2/crnn.pytorch_generator/train_Sentence.py", line 195, in
train(arguments)
File "F:/pycharm2020.2/crnn.pytorch_generator/train_Sentence.py", line 138, in train
loss = train_one_epoch(model, criterion, optimizer, data_loader, device, epoch, args)
File "F:/pycharm2020.2/crnn.pytorch_generator/train_Sentence.py", line 65, in train_one_epoch
for image, target, input_len, target_len in tqdm(data_loader):
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\site-packages\tqdm\std.py", line 1165, in iter
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\multiprocessing\spawn.py", line 116, in spawn_main
exitcode = _main(fd, parent_sentinel)
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\multiprocessing\spawn.py", line 126, in _main
for obj in iterable:
self = reduction.pickle.load(from_parent)
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\site-packages\torch\utils\data\dataloader.py", line 359, in iter
EOFError: Ran out of input
return self._get_iterator()
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\site-packages\torch\utils\data\dataloader.py", line 305, in _get_iterator
return _MultiProcessingDataLoaderIter(self)
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\site-packages\torch\utils\data\dataloader.py", line 918, in init
w.start()
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\multiprocessing\process.py", line 121, in start
self._popen = self._Popen(self)
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\multiprocessing\context.py", line 224, in _Popen
return _default_context.get_context().Process._Popen(process_obj)
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\multiprocessing\context.py", line 327, in _Popen
return Popen(process_obj)
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\multiprocessing\popen_spawn_win32.py", line 93, in init
reduction.dump(process_obj, to_child)
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\multiprocessing\reduction.py", line 60, in dump
ForkingPickler(file, protocol).dump(obj)
TypeError: cannot pickle 'Font' object

Process finished with exit code 1

[nissansz]

这个错误，可以解决 # num_workers=args.workers
改为num_workers = 0

但是然后转到generator.py，又在这个类报错了
C:\Users\Ni\AppData\Local\Programs\Python\Python38\python.exe F:/pycharm2020.2/crnn.pytorch_generator/train.py
Namespace(batch_size=64, device='cuda', direction='horizontal', dist_backend='nccl', dist_url='env://', distributed=False, epochs=90, init_epoch=0, local_rank=0, lr=0.01, lr_gamma=0.1, lr_step_size=30, momentum=0.9, output_dir='./output', sync_bn=False, weight_decay=1e-05, workers=4, world_size=1)
0%| | 0/18 [00:00<?, ?it/s]
Traceback (most recent call last):
File "F:/pycharm2020.2/crnn.pytorch_generator/train.py", line 195, in
train(arguments)
File "F:/pycharm2020.2/crnn.pytorch_generator/train.py", line 140, in train
loss = train_one_epoch(model, criterion, optimizer, data_loader, device, epoch, args)
File "F:/pycharm2020.2/crnn.pytorch_generator/train.py", line 65, in train_one_epoch
for image, target, input_len, target_len in tqdm(data_loader):
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\site-packages\tqdm\std.py", line 1165, in iter
for obj in iterable:
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\site-packages\torch\utils\data\dataloader.py", line 521, in next
data = self._next_data()
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\site-packages\torch\utils\data\dataloader.py", line 561, in _next_data
data = self._dataset_fetcher.fetch(index) # may raise StopIteration
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\site-packages\torch\utils\data_utils\fetch.py", line 49, in fetch
data = [self.dataset[idx] for idx in possibly_batched_index]
File "C:\Users\Ni\AppData\Local\Programs\Python\Python38\lib\site-packages\torch\utils\data_utils\fetch.py", line 49, in
data = [self.dataset[idx] for idx in possibly_batched_index]
File "F:\pycharm2020.2\crnn.pytorch_generator\generator.py", line 181, in getitem
image, indices, target_len = self.gen_image()
File "F:\pycharm2020.2\crnn.pytorch_generator\generator.py", line 158, in gen_image
text = np.random.choice(FONT_CHARS_DICT[font_path], target_len)
File "mtrand.pyx", line 908, in numpy.random.mtrand.RandomState.choice
ValueError: 'a' cannot be empty unless no samples are taken

Process finished with exit code 1