python安装pytorch

本文链接： https://blog.csdn.net/qq_39377418/article/details/100336356

python 在安装 pytorch 的时候 , 很容易犯一个错误 , 大多数第三方库都是通过终端利用 pip 命令就可以安装上 , 然而 pytorch 就显示出了他的特别之处 , 如果直接 pip install 就是不行 , 因为这个安装命令需要从官网获取相对应的安装命令

第一步：去官网看看

官网 : https://pytorch.org/

第二步：选择与自己相匹配的版本，这里显示是我安装的选择。

我们首先要对自己的运行环境做出选择 , 然后人家会给咱们一个对应的安装命令 , 然后在终端执行这条命令就可以了

第三步：成功安装：

例如 :

C:\Users\Administrator>pip3 install http://download.pytorch.org/whl/cpu/torch-0.4.1-cp36-cp36m-win_amd64.whl
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple/
Collecting torch==0.4.1 from http://download.pytorch.org/whl/cpu/torch-0.4.1-cp36-cp36m-win_amd64.whl
  Downloading http://download.pytorch.org/whl/cpu/torch-0.4.1-cp36-cp36m-win_amd64.whl (55.9MB)
     |████████████████████████████████| 55.9MB 251kB/s
Installing collected packages: torch
Successfully installed torch-0.4.1

C:\Users\Administrator>pip3 install torchvision
Collecting torchvision
  Downloading https://files.pythonhosted.org/packages/ca/0d/f00b2885711e08bd71242ebe7b96561e6f6d01fdb4b9dcf4d37e2e13c5e1/torchvision-0.2.1-py2.py3-none-any.whl (54kB)
    100% |████████████████████████████████| 61kB 120kB/s
Requirement already satisfied: numpy in C:\Users\Administrator\appdata\local\programs\python\python36\lib\site-packages (from torchvision) (1.15.3)
Requirement already satisfied: six in C:\Users\Administrator\appdata\local\programs\python\python36\lib\site-packages (from torchvision) (1.11.0)
Collecting pillow>=4.1.1 (from torchvision)
  Downloading https://files.pythonhosted.org/packages/bd/39/c76eaf781343162bdb1cf4854cb3bd5947a87ee44363e5acd6c48d69c4a1/Pillow-5.3.0-cp36-cp36m-win_amd64.whl (1.6MB)
    100% |████████████████████████████████| 1.6MB 81kB/s
Requirement already satisfied: torch in C:\Users\Administrator\appdata\local\programs\python\python36\lib\site-packages (from torchvision) (0.4.1)
Installing collected packages: pillow, torchvision
Successfully installed pillow-5.3.0 torchvision-0.2.1

执行成功就可以用了

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