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fast.ai early development experiments
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Import Error on import fastai2.basics #258

Closed dcoukos closed 4 years ago

dcoukos commented 4 years ago

Hello!

Just installed fastai v2 on a kaggle kernel following instructions from Jeremy Howard's notebook.

Running import fastai2.basics results in the traceback linked below. I'm fairly inexperienced with python, but this seems like an issue within fastai to me.

ImportError Traceback (most recent call last)

in ----> 1 import fastai2.basics /opt/conda/lib/python3.6/site-packages/fastai2/basics.py in ----> 1 from .data.all import * 2 from .optimizer import * 3 from .learner import * 4 from .metrics import * /opt/conda/lib/python3.6/site-packages/fastai2/data/all.py in ----> 1 from ..torch_basics import * 2 from .core import * 3 from .load import * 4 from .external import * 5 from .transforms import * /opt/conda/lib/python3.6/site-packages/fastai2/torch_basics.py in 1 from .core.all import * ----> 2 from .torch_imports import * 3 from .torch_core import * 4 from .layers import * /opt/conda/lib/python3.6/site-packages/fastai2/torch_imports.py in ----> 1 import torch 2 from torch import as_tensor,Tensor,ByteTensor,LongTensor,FloatTensor,HalfTensor,DoubleTensor 3 import torch.nn as nn 4 import torch.nn.functional as F 5 from torch.utils.data import SequentialSampler,RandomSampler,Sampler,BatchSampler /opt/conda/lib/python3.6/site-packages/torch/__init__.py in 79 del _dl_flags 80 ---> 81 from torch._C import * 82 83 __all__ += [name for name in dir(_C) ImportError: libshm.so: cannot open shared object file: No such file or directory
sandreel commented 4 years ago

Interesting. I am trying the same and for me also the import fastai2.basics command is failing, however already a bit earlier...

from fastai2.basics import Traceback (most recent call last): File "", line 1, in File "<...>/anaconda3/envs/medical_image/lib/python3.7/site-packages/fastai2/basics.py", line 1, in from .data.all import File "<...>/anaconda3/envs/medical_image/lib/python3.7/site-packages/fastai2/data/all.py", line 1, in from ..torch_basics import File "<...>/anaconda3/envs/medical_image/lib/python3.7/site-packages/fastai2/torch_basics.py", line 1, in from .core.all import ModuleNotFoundError: No module named 'fastai2.core'

dcoukos commented 4 years ago

This must have been fixed in a recent commit. This error no longer appears on a fresh install of fastai2