使用Google的FastAI库v1
使用Google的FastAI库v1
提问于 2018-10-11 14:02:42
我正在尝试安装FastAi库，并与Google一起使用。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/安装所有东西，但当我运行时
from fastai.imports import *最后一行给出了一个错误，内容如下：
ImportError:无法导入名称“as_tensor”
有人知道我做错了什么吗?为什么它在安装第一件东西时不导入fastai库？
我收到的全部错误如下：
---------------------------------------------------------------------------
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'回答 4
Stack Overflow用户
回答已采纳
发布于 2018-10-15 15:39:37
您正在使用以前版本的torch torch-0.3.0.post4，它没有as_tensor。
因此，您可以使用其他版本的torch，如torch-0.4.1，其中有此方法。
在运行完以下代码段之后：
!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 *Stack Overflow用户
发布于 2018-10-20 18:41:10
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'
!pip3 install torch_nightly -f https://download.pytorch.org/whl/nightly/{accelerator}/torch_nightly.html
import torch
print(torch.__version__)
print(torch.cuda.is_available())
print(torch.backends.cudnn.enabled)如果这个部分没有问题，那么从今天开始，您将看到以下输出：
1.0.0.dev20181019
True
True然后继续安装release的最新版本：
!pip3 install fastai并用以下方法进行测试：
from fastai.imports import *Stack Overflow用户
发布于 2018-10-11 14:57:21
我错过了依赖关系。我做了一个笨拙的解决方案，安装了库的前一个版本(带有依赖关系)，然后卸载库并用更新的版本替换它。
代码如下。
!pip install "fastai==0.7.0"
!pip uninstall "fastai==0.7.0"
!pip 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())
!apt update && apt install -y libsm6 libxext6
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
from fastai.imports import *页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/52762053
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