(ml) C:\Users\Jimmy\Documents\Kaggle\siim>C:/Users/Jimmy/.conda/envs/ml/python.exe c:/Users/Jimmy/Documents/Kaggle/siim/3_Training.py
cuda
Training - Epoch 00:   0%|                                                                                                                                                                       | 0/1339 [00:00<?, ?it/s]Traceback (most recent call last):
  File "c:/Users/Jimmy/Documents/Kaggle/siim/3_Training.py", line 155, in <module>
    losses[epoch_idx] = train_epoch(epoch_idx, net, optimizer, dataloader, device)
  File "c:/Users/Jimmy/Documents/Kaggle/siim/3_Training.py", line 95, in train_epoch
    for batch in progress_bar:
  File "C:\Users\Jimmy\.conda\envs\ml\lib\site-packages\tqdm\_tqdm.py", line 1017, in __iter__
    for obj in iterable:
  File "C:\Users\Jimmy\.conda\envs\ml\lib\site-packages\torch\utils\data\dataloader.py", line 193, in __iter__
    return _DataLoaderIter(self)
  File "C:\Users\Jimmy\.conda\envs\ml\lib\site-packages\torch\utils\data\dataloader.py", line 469, in __init__
    w.start()
  File "C:\Users\Jimmy\.conda\envs\ml\lib\multiprocessing\process.py", line 112, in start
    self._popen = self._Popen(self)
  File "C:\Users\Jimmy\.conda\envs\ml\lib\multiprocessing\context.py", line 223, in _Popen
    return _default_context.get_context().Process._Popen(process_obj)
  File "C:\Users\Jimmy\.conda\envs\ml\lib\multiprocessing\context.py", line 322, in _Popen
    return Popen(process_obj)
  File "C:\Users\Jimmy\.conda\envs\ml\lib\multiprocessing\popen_spawn_win32.py", line 89, in __init__
    reduction.dump(process_obj, to_child)
  File "C:\Users\Jimmy\.conda\envs\ml\lib\multiprocessing\reduction.py", line 60, in dump
    ForkingPickler(file, protocol).dump(obj)
_pickle.PicklingError: Can't pickle <class '__main__.SIIM'>: attribute lookup SIIM on __main__ failed

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You can print a more detailed traceback right now with "%tb", or use "%debug"
to interactively debug it.

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    %config Application.verbose_crash=True

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "C:\Users\Jimmy\.conda\envs\ml\lib\multiprocessing\spawn.py", line 105, in spawn_main
    exitcode = _main(fd)
  File "C:\Users\Jimmy\.conda\envs\ml\lib\multiprocessing\spawn.py", line 115, in _main
    self = reduction.pickle.load(from_parent)
EOFError: Ran out of input