python - 带有Google Colab的FastAI库v1

我正在尝试安装FastAi库并将其与Google Colab结合使用。我是

使用:

!pip3 install fastai
!apt-get -qq install -y libsm6 libxext6 && pip install -q -U opencv-python
import cv2
from os import path
from wheel.pep425tags import get_abbr_impl, get_impl_ver, get_abi_tag
platform = '{}{}-{}'.format(get_abbr_impl(), get_impl_ver(), get_abi_tag())
accelerator = 'cu80' if path.exists('/opt/bin/nvidia-smi') else 'cpu'
!pip install -q http://download.pytorch.org/whl/{accelerator}/torch-0.3.0.post4-{platform}-linux_x86_64.whl torchvision
import torch
!pip install Pillow==4.1.1
!pip install image
%matplotlib inline

导入/安装所有内容，
但是当我运行时

from fastai.imports import *

最后一行给出了一个错误，内容为:



有谁知道我做错了/为什么在安装第一本书时不导入fastai库？

我收到的完整错误如下:

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-10-9f9378ae0f2a> in <module>()
----> 1 from fastai.imports import *

/usr/local/lib/python3.6/dist-packages/fastai/__init__.py in <module>()
----> 1 from .basic_train import *
  2 from .callback import *
  3 from .callbacks import *
  4 from .core import *
  5 from .data import *

/usr/local/lib/python3.6/dist-packages/fastai/basic_train.py in <module>()
  1 "Provides basic training and validation with `Learner`"
----> 2 from .torch_core import *
  3 from .data import *
  4 from .callback import *
  5

/usr/local/lib/python3.6/dist-packages/fastai/torch_core.py in <module>()
  1 "Utility functions to help deal with tensors"
----> 2 from .imports.torch import *
  3 from .core import *
  4
  5 AffineMatrix = Tensor

/usr/local/lib/python3.6/dist-packages/fastai/imports/__init__.py in
<module>()
  1 from .core import *
----> 2 from .torch import *

/usr/local/lib/python3.6/dist-packages/fastai/imports/torch.py in <module>()
  1 import torch, torch.nn.functional as F
  2 from torch import ByteTensor, DoubleTensor, FloatTensor, HalfTensor,
LongTensor, ShortTensor, Tensor
----> 3 from torch import nn, optim, as_tensor, tensor
  4 from torch.utils.data import BatchSampler, DataLoader, Dataset, Sampler,
TensorDataset

ImportError: cannot import name 'as_tensor'

最佳答案

您正在使用的早期版本的手电筒torch-0.3.0.post4没有as_tensor。

因此，您可以使用具有此方法的其他版本的手电筒，例如torch-0.4.1。

运行以下代码段后:

!pip3 install fastai
!apt-get -qq install -y libsm6 libxext6 && pip install -q -U opencv-python
import cv2
from os import path
from wheel.pep425tags import get_abbr_impl, get_impl_ver, get_abi_tag
platform = '{}{}-{}'.format(get_abbr_impl(), get_impl_ver(), get_abi_tag())
accelerator = 'cu80' if path.exists('/opt/bin/nvidia-smi') else 'cpu'
# !pip install -q http://download.pytorch.org/whl/{accelerator}/torch-0.3.0.post4-{platform}-linux_x86_64.whl torchvision
!pip3 install http://download.pytorch.org/whl/cpu/torch-0.4.1-cp36-cp36m-linux_x86_64.whl

import torch
!pip install Pillow==4.1.1
!pip install image
%matplotlib inline

您可以使用 :

from fastai.imports import *