Python ModuleNotFoundError：没有名为“tools.nnwrap”的模块
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ModuleNotFoundError: No module named 'tools.nnwrap'
提问by Singh
I am trying to import a package "torch". For same, I tried to install it using pip command as below, installation even started but after few seconds it got error
我正在尝试导入一个包“火炬”。同样，我尝试使用如下的 pip 命令安装它，安装甚至开始了，但几秒钟后出现错误
below is the command that I executed
下面是我执行的命令
pip install torch
pip install torch
Error that I got:
我得到的错误：
from tools.nnwrap import generate_wrappers as generate_nn_wrappers
ModuleNotFoundError: No module named 'tools.nnwrap'
OS:Windows. IDE: pyCharm
操作系统：Windows。 IDE: pyCharm
I got the only link related to this issue but I was not able to interpret it.
我得到了与此问题相关的唯一链接，但我无法解释它。
回答by Singh
Anyone who is looking for the solution refer below:
任何正在寻找解决方案的人请参阅以下内容：
It seems command to install torch not is working as expected, instead, you can try to install PyTorch using below command.
似乎安装 Torch 的命令没有按预期工作，相反，您可以尝试使用以下命令安装 PyTorch。
It's working and solved my above-mentioned issue.
它正在工作并解决了我的上述问题。
Run below command(for below-specified OS, package-manager, Language):
运行以下命令（对于以下指定的操作系统、包管理器、语言）：
# for OS: Windows, package-manager: pip, Language: python3.6 (below command is valid for only mentioned python 3.6)
pip3 install https://download.pytorch.org/whl/cu90/torch-1.1.0-cp36-cp36m-win_amd64.whl
pip3 install https://download.pytorch.org/whl/cu90/torchvision-0.3.0-cp36-cp36m-win_amd64.whl
For another version/type of the software (OS, package, Language) installed, the command must be generated from the below-mentioned link.
对于安装的其他版本/类型的软件（操作系统、软件包、语言），必须从下面提到的链接生成命令。
回答by Slim
Follow the instructions on https://pytorch.org/get-started/locally/
按照https://pytorch.org/get-started/locally/上的说明进行操作
Choose Package "Pip" if you want to pip install
如果需要，请选择包“Pip” pip install
It will give you output such as
它会给你输出，如
pip3 install https://download.pytorch.org/whl/cu90/torch-1.1.0-cp37-cp37m-win_amd64.whl
pip3 install https://download.pytorch.org/whl/cu90/torchvision-0.3.0-cp37-cp37m-win_amd64.whl
Edit: new install instructions from pytorch.org shows commands such as
编辑：来自 pytorch.org 的新安装说明显示了诸如
pip3 install torch===1.3.1 torchvision===0.4.2 -f https://download.pytorch.org/whl/torch_stable.html
回答by Inna Klimbovskaia
For what it's worth, on Windows 10 in Anaconda, the only command which worked for me was:
值得一提的是，在 Anaconda 的 Windows 10 上，唯一对我有用的命令是：
pip3 install https://download.pytorch.org/whl/cu90/torch-1.0.1-cp37-cp37m-win_amd64.whl
回答by Demotte
To install stable version of pytorch in windows 10 for pycharm, following command should work.
要在 Windows 10 中为 pycharm 安装稳定版本的 pytorch，请使用以下命令。
pip install torch===1.4.0 torchvision===0.5.0 -f https://download.pytorch.org/whl/torch_stable.html
回答by healer101
This worked for Windows 10 using Python-3.x pip
这适用于使用 Python-3.x 的 Windows 10 pip
pip install torch==1.4.0+cpu torchvision==0.5.0+cpu -f https://download.pytorch.org/whl/torch_stable.html
pip install torch==1.4.0+cpu torchvision==0.5.0+cpu -f https://download.pytorch.org/whl/torch_stable.html
回答by James Owers
回答by Chris
I was getting the same error, then I found that the latest pytorch install requires CUDA 10.1, and once I installed that and the matching cuDNN, then this command line succeeded:
我遇到了同样的错误，然后我发现最新的 pytorch 安装需要 CUDA 10.1，一旦我安装了它和匹配的 cuDNN，这个命令行就成功了：
conda install pytorch torchvision cudatoolkit=10.1 -c pytorch
回答by Hymanssn
How I fix it in Windows 10 (x64)
我如何在 Windows 10 (x64) 中修复它
31 March 2020
2020 年 3 月 31 日
Install CUDA from here:
https://developer.nvidia.com/cuda-downloads?target_os=Windows&target_arch=x86_64&target_version=10&target_type=exelocal- Version:
cuda_10.2.89_441.22_win10.exe
- Version:
Use official website pytorch:
https://pytorch.org/get-started/locally/- This command in CMD:
pip install torch===1.4.0 torchvision===0.5.0 -f https://download.pytorch.org/whl/torch_stable.html
- This command in CMD:
In Anaconda3 I tried to use same website just change Package to conda:
- Command in jupyter notebook:
conda install pytorch torchvision cudatoolkit=10.1 -c pytorch 
- And after restart it does NOT work
- So I tried to use
pipagain in jupyter notebook:pip install torch===1.4.0 torchvision===0.5.0 -f https://download.pytorch.org/whl/torch_stable.html - And it WORKS(if no, you can try to restart kernel):
- Command in jupyter notebook:
从这里安装 CUDA：
https://developer.nvidia.com/cuda-downloads?target_os=Windows&target_arch=x86_64&target_version=10&target_type=exelocal- 版本：
cuda_10.2.89_441.22_win10.exe
- 版本：
使用官网pytorch：
https://pytorch.org/get-started/locally/- CMD中的这个命令：
pip install torch===1.4.0 torchvision===0.5.0 -f https://download.pytorch.org/whl/torch_stable.html
- CMD中的这个命令：
在 Anaconda3 中，我尝试使用相同的网站，只需将 Package 更改为conda：
- jupyter 笔记本中的命令：
conda install pytorch torchvision cudatoolkit=10.1 -c pytorch - 重新启动后它不起作用
- 所以我尝试
pip在 jupyter notebook 中再次使用：pip install torch===1.4.0 torchvision===0.5.0 -f https://download.pytorch.org/whl/torch_stable.html - 和它的工作原理（如果没有，你可以尝试重新启动内核）：
- jupyter 笔记本中的命令：
回答by Lawrence Patrick
Had to fix this at two locations:
必须在两个位置修复此问题：
DEV windows 10 machine: CD to C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\Scripts execute: conda install pytorch
DEV windows 10 机器：CD 到 C:\Program Files (x86)\Microsoft Visual Studio\Shared\Anaconda3_64\Scripts 执行：conda install pytorch
DEV Windows MSSQL Server Database Python Services CD to C:\Program Files\Microsoft SQL Server\MSSQL14.MSSQLSERVER\PYTHON_SERVICES\Scripts execute: pip3 install torch
DEV Windows MSSQL Server Database Python Services CD 到 C:\Program Files\Microsoft SQL Server\MSSQL14.MSSQLSERVER\PYTHON_SERVICES\Scripts 执行：pip3 install torch
