Pytorch torchvision FasionMNIST 数据集无法加载

如何解决Pytorch torchvision FasionMNIST 数据集无法加载

我在运行 vanilla Python 3.9.5 的 Windows 10 机器上使用 IDLE。我正在关注 here 的一些 Pytorch 教程。一切正常，直到 Datasets & Dataloaders 我尝试下载 FashionMNIST 数据集。

我首先使用 pip 安装了 torchvision 包。

pip install torchvision===0.9.1+cu111 -f https://download.pytorch.org/whl/torch_stable.html

以下是我安装的软件包。

Package           Version
----------------- -----------
cycler            0.10.0
keyboard          0.13.5
kiwisolver        1.3.1
matplotlib        3.4.1
MouseInfo         0.1.3
mss               6.1.0
numpy             1.20.2
opencv-python     4.5.2.52
Pillow            8.2.0
pip               21.1.1
PyAutoGUI         0.9.52
PyGetWindow       0.0.9
PyMsgBox          1.0.9
pyparsing         2.4.7
pyperclip         1.8.2
PyRect            0.1.4
PyScreeze         0.1.27
python-dateutil   2.8.1
PyTweening        1.0.3
setuptools        56.0.0
six               1.16.0
torch             1.8.1+cu111
torchaudio        0.8.1
torchvision       0.9.1+cu111
typing-extensions 3.10.0.0

我尝试运行以下脚本。

import torch
from torch.utils.data import Dataset
from torchvision import datasets
from torchvision.transforms import ToTensor
import matplotlib.pyplot as plt


training_data = datasets.FashionMNIST(
    root="C:/../../../Python/LearningPytorch/data",train=True,download=True,transform=ToTensor()
    
)

test_data = datasets.FashionMNIST(
    root="C:/../../../Python/LearningPytorch/data",train=False,transform=ToTensor()
)

一切似乎都以预期的输出开始。

Python 3.9.5 (tags/v3.9.5:0a7dcbd,May  3 2021,17:27:52) [MSC v.1928 64 bit (AMD64)] on win32
Type "help","copyright","credits" or "license()" for more information.
>>> 
= RESTART: C:/../../../Python/LearningPytorch/DatasetsAndDataLoaders.py
Downloading http://fashion-mnist.s3-website.eu-central-1.amazonaws.com/train-images-idx3-ubyte.gz
Downloading http://fashion-mnist.s3-website.eu-central-1.amazonaws.com/train-images-idx3-ubyte.gz to C:/../../../Python/LearningPytorch/data\FashionMNIST\raw\train-images-idx3-ubyte.gz

= RESTART: C:/../../../Python/LearningPytorch/DatasetsAndDataLoaders.py
Downloading http://fashion-mnist.s3-website.eu-central-1.amazonaws.com/train-images-idx3-ubyte.gz
Downloading http://fashion-mnist.s3-website.eu-central-1.amazonaws.com/train-images-idx3-ubyte.gz to C:/../../../Python/LearningPytorch/data\FashionMNIST\raw\train-images-idx3-ubyte.gz

0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.1%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%...

大约半小时后，在大约 50% 的下载量时，它失败了。我有很棒的互联网，整个过程中速度下降了 500 Mbps。

我收到以下错误消息。

Traceback (most recent call last):
  File "C:\..\..\..\DatasetsAndDataLoaders.py",line 8,in <module>
    training_data = datasets.FashionMNIST(
  File "C:\..\..\..\Python\Python39\lib\site-packages\torchvision\datasets\mnist.py",line 85,in __init__
    self.download()
  File "C:\..\..\..\Python\Python39\lib\site-packages\torchvision\datasets\mnist.py",line 155,in download
    download_and_extract_archive(
  File "C:\..\..\..\Python\Python39\lib\site-packages\torchvision\datasets\utils.py",line 316,in download_and_extract_archive
    download_url(url,download_root,filename,md5)
  File "C:\..\..\..\Python\Python39\lib\site-packages\torchvision\datasets\utils.py",line 142,in download_url
    raise e
  File "C:\..\..\..\Python\Python39\lib\site-packages\torchvision\datasets\utils.py",line 134,in download_url
    _urlretrieve(url,fpath)
  File "C:\..\..\..\Python\Python39\lib\site-packages\torchvision\datasets\utils.py",line 31,in _urlretrieve
    for chunk in iter(lambda: response.read(chunk_size),""):
  File "C:\..\..\..\Python\Python39\lib\site-packages\torchvision\datasets\utils.py",in <lambda>
    for chunk in iter(lambda: response.read(chunk_size),""):
  File "C:\..\..\..\Python\Python39\lib\http\client.py",line 455,in read
    n = self.readinto(b)
  File "C:\..\..\..\Python\Python39\lib\http\client.py",line 499,in readinto
    n = self.fp.readinto(b)
  File "C:\..\..\..\Python\Python39\lib\socket.py",line 704,in readinto
    return self._sock.recv_into(b)
ConnectionResetError: [WinError 10054] An existing connection was forcibly closed by the remote host

单个下载的 gzip 文件的一部分可以在 C:......\Python\LearningPytorch\data\FashionMNIST\raw 中找到 数据/FashionMNIST/raw/train-images-idx3-ubyte.gz

我尝试从 other sources 下载，仅替换下载过程中创建的文件夹结构中的数据。这也不起作用。

这里出了什么问题？