cannot import name 'Sequence' from 'collections'

[sajfb]

I just try to import MinkowskiEngine, but it has a major problem with its package dependency!

import numpy as np
import torch.nn as nn
import MinkowskiEngine as ME

This is the error that I get on torch.version : '1.13.1+cu117' and python 3.10.6

File ~/.local/lib/python3.10/site-packages/MinkowskiEngine/__init__.py:67
     51 from diagnostics import print_diagnostics
     53 from MinkowskiEngineBackend._C import (
     54     MinkowskiAlgorithm,
     55     CoordinateMapKey,
   (...)
     64     get_gpu_memory_info,
     65 )
---> 67 from MinkowskiKernelGenerator import (
     68     KernelRegion,
     69     KernelGenerator,
     70     convert_region_type,
     71     get_kernel_volume,
     72 )
     74 from MinkowskiTensor import (
     75     SparseTensorOperationMode,
     76     SparseTensorQuantizationMode,
   (...)
...
---> 26 from collections import Sequence, namedtuple
     27 from functools import reduce
     28 import numpy as np

ImportError: cannot import name 'Sequence' from 'collections' (/usr/lib/python3.10/collections/__init__.py)

This issue pertains to Python 3.10 which the collections package got changed. MinkowskiEngine requires some updates regarding to Python upgrades.

[subminu]

As this link, after python 3.10, Sequence has been moved to collections.abc not collections.

You can use MinkowskiEngine on Python 3.10 by editing the following files.

• MinkowskiEngine/utils/quantization.py
• MinkowskiEngine/MinkowskiCommon.py
• MinkowskiEngine/MinkowskiCoordinateManager.py
• MinkowskiEngine/MinkowskiKernelGenerator.py
• MinkowskiEngine/MinkowskiTensorField.py

# You should edit the code that import Sequence as following code..
try: 
    from collections import Sequence
except ImportError:
    from collections.abc import Sequence