用这个比较保险

pip install tensorflow==2.2.0 -i https://pypi.tuna.tsinghua.edu.cn/simple --trusted-host pypi.tuna.tsinghua.edu.cn

下载pytorch cpu版本

pip install torch==1.5.1+cpu torchvision==0.6.1+cpu -f https://download.pytorch.org/whl/torch_stable.html

(1)pip国内的一些镜像
阿里云 http://mirrors.aliyun.com/pypi/simple/

中国科技大学 https://pypi.mirrors.ustc.edu.cn/simple/

豆瓣(douban) http://pypi.douban.com/simple/

清华大学 https://pypi.tuna.tsinghua.edu.cn/simple/

中国科学技术大学 http://pypi.mirrors.ustc.edu.cn/simple/

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pip install  statsmodels -i https://pypi.tuna.tsinghua.edu.cn/simple/ --trusted-host pypi.douban.com

python37 -m  pip  install torch==1.5.1+cpu torchvision==0.6.1+cpu -f https://download.pytorch.org/whl/torch_stable.html

pip install torch==1.5.1+cpu torchvision==0.6.1+cpu -f https://download.pytorch.org/whl/torch_stable.html

pip  install pygame -i https://pypi.tuna.tsinghua.edu.cn/simple/ --trusted-host pypi.douban.com

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#pip install --upgrade jupyter
a.临时使用:

可以在使用pip的时候在后面加上-i参数,指定pip源


示例: pip install bs4-i https://pypi.tuna.tsinghua.edu.cn/simple/ --trusted-host pypi.douban.com 后边这个代码是信任这个网址的意思
                     库名称
pip install  torchtext -i http://pypi.mirrors.ustc.edu.cn/simple/  --trusted-host pypi.mirrors.ustc.edu.cn
普通的:pip install scipy==1.2.1          速度很慢 
国内源变形:pip install --user tensorflow -i https://pypi.tuna.tsinghua.edu.cn/simple/    指定国内源速度很快 
                                                  此处空格

python37 -m pip install transformers -i https://pypi.tuna.tsinghua.edu.cn/simple 

pip install torch-geometric -i https://pypi.tuna.tsinghua.edu.cn/simple 
pip install PyHamcrest==1.9.0 -i https://pypi.tuna.tsinghua.edu.cn/simple 
pip install torch_scatter-1.0.2 (1).tar.gz


pip install torch_scatter-latest+cpu-cp36-cp36m-win_amd64.whl

进入anadacon创建的pytorch屋子环境  conda activate pytorch

torch安装包:网址:https://download.pytorch.org/whl/torch_stable.html

conda pip install torch==1.5.1+cpu torchvision==0.6.1+cpu -f https://download.pytorch.org/whl/torch_stable.html

cp35是支持python3.5版本的文件  

pytorch离线安装网址

pytorch官网:https://pytorch.org/

一、清华镜像源方案
该方案就是将官网的下载路径,改到清华镜像源的路径,先用activate激活自己之前创建的环境后,在命令行输入以下代码:

conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/

conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/

conda config --set show_channel_urls yes

conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/

然后再去pytorch官网复制下载代码,记得删掉后面的-c pytorch,因为它表示从官网进行下载,不从清华镜像源下。

python37 -m  pip  install torch==1.5.1+cpu torchvision==0.6.1+cpu -f https://download.pytorch.org/whl/torch_stable.html