Traceback (most recent call last):


 "/snap/beets/6/bin/beet", line 8, in <module>

sys.exit(main())


 "/snap/beets/6/lib/python3.8/site-packages/beets/ui/__init__.py", line 1266, in main

_raw_main(args)


 "/snap/beets/6/lib/python3.8/site-packages/beets/ui/__init__.py", line 1249, in _raw_main

subcommands, plugins, lib = _setup(options, lib)


 "/snap/beets/6/lib/python3.8/site-packages/beets/ui/__init__.py", line 1144, in _setup

lib = _open_library(config)


 "/snap/beets/6/lib/python3.8/site-packages/beets/ui/__init__.py", line 1201, in _open_library

get_path_formats(),


 "/snap/beets/6/lib/python3.8/site-packages/beets/ui/__init__.py", line 619, in get_path_formats

path_formats.append((query, template(view.as_str())))


 "/snap/beets/6/lib/python3.8/site-packages/beets/util/functemplate.py", line 571, in template

return Template(fmt)


 "/snap/beets/6/lib/python3.8/site-packages/beets/util/functemplate.py", line 581, in __init__

self.compiled = self.translate()


 "/snap/beets/6/lib/python3.8/site-packages/beets/util/functemplate.py", line 614, in translate

func = compile_func(


 "/snap/beets/6/lib/python3.8/site-packages/beets/util/functemplate.py", line 155, in compile_func

prog = compile(mod, '<generated>', 'exec')
ValueError: Name node can't be used with 'None' constant

Traceback (most recent call last):


 "./tools/train.py", line 137, in <module>

main()


 "./tools/train.py", line 132, in main

logger=logger,


 "/home/ai/CenterPoint/det3d/torchie/apis/train.py", line 327, in train_detector

trainer.run(data_loaders, cfg.workflow, cfg.total_epochs, local_rank=cfg.local_rank)


 "/home/ai/CenterPoint/det3d/torchie/trainer/trainer.py", line 543, in run

epoch_runner(data_loaders[i], self.epoch, **kwargs)


 "/home/ai/CenterPoint/det3d/torchie/trainer/trainer.py", line 395, in train

for i, data_batch in enumerate(data_loader):


 "/home/ai/anaconda3/envs/centerpoint/lib/python3.7/site-packages/torch/utils/data/dataloader.py", line 363, in __next__

data = self._next_data()


 "/home/ai/anaconda3/envs/centerpoint/lib/python3.7/site-packages/torch/utils/data/dataloader.py", line 989, in _next_data

return self._process_data(data)


 "/home/ai/anaconda3/envs/centerpoint/lib/python3.7/site-packages/torch/utils/data/dataloader.py", line 1014, in _process_data

data.reraise()


 "/home/ai/anaconda3/envs/centerpoint/lib/python3.7/site-packages/torch/_utils.py", line 395, in reraise

raise self.exc_type(msg)
ValueError: Caught ValueError in DataLoader worker process 0.
