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cannot import name 'PY3' from 'torch._six' on fresh install of bolts

See original GitHub issue

🐛 Bug

Fresh install of pytorch-lightning and pytorch-lightning bolts leads to error cannot import name 'PY3' from 'torch._six'

Looks like it was renamed to PY37 in torch._six. I changed all references to PY3 to PY37 inside pl_bolts/datasets/imagenet_dataset.py and the problem resolved.

Traceback (most recent call last):
  File "debugtuner.py", line 4, in <module>
    from pl_bolts.datamodules import MNISTDataModule
  File "/home/davina/miniconda3/envs/ap/lib/python3.8/site-packages/pl_bolts/__init__.py", line 47, in <module>
    from pl_bolts import callbacks, datamodules, datasets, losses, metrics, models, optimizers, transforms, utils
  File "/home/davina/miniconda3/envs/ap/lib/python3.8/site-packages/pl_bolts/datamodules/__init__.py", line 2, in <module>
    from pl_bolts.datamodules.binary_mnist_datamodule import BinaryMNISTDataModule
  File "/home/davina/miniconda3/envs/ap/lib/python3.8/site-packages/pl_bolts/datamodules/binary_mnist_datamodule.py", line 4, in <module>
    from pl_bolts.datasets import BinaryMNIST
  File "/home/davina/miniconda3/envs/ap/lib/python3.8/site-packages/pl_bolts/datasets/__init__.py", line 11, in <module>
    from pl_bolts.datasets.imagenet_dataset import extract_archive, parse_devkit_archive, UnlabeledImagenet
  File "/home/davina/miniconda3/envs/ap/lib/python3.8/site-packages/pl_bolts/datasets/imagenet_dataset.py", line 12, in <module>
    from torch._six import PY3
ImportError: cannot import name 'PY3' from 'torch._six' (/home/davina/miniconda3/envs/ap/lib/python3.8/site-packages/torch/_six.py)

Code sample

from pl_bolts.datamodules import MNISTDataModule

Expected behavior

the package should run with no error.

Environment

PyTorch Version (e.g., 1.0): 1.8
OS (e.g., Linux): MacOs
How you installed PyTorch (conda, pip, source): conda
Build command you used (if compiling from source): pip install
Python version: 3.8
CUDA/cuDNN version: 10.1
GPU models and configuration: 4 nvidia gpus
Any other relevant information:

Issue Analytics

State:
Created 3 years ago
Reactions:3
Comments:8 (4 by maintainers)

Top GitHub Comments

1reaction

davzamancommented, Mar 8, 2021

I created a new env and instead of pip install pytorch-lightning-bolts I ran what you suggested and tried importing the MNISTDataModule and it did not produce errors.

0reactions

Bordacommented, Mar 8, 2021

so it was fixed with #579

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