关于linux:pip安装更换镜像

原文链接

应用 pip 来装置 python 包有时候装置起来会十分慢，因而须要换成国内的源来减速下载：

应用命令

以 Torch 为例：

pip install -i https://pypi.tuna.tsinghua.edu.cn/simple torch

罕用的国内源

清华大学：Simple Index

中国科学技术大学：Simple Index

阿里云：Simple Index

豆瓣：Simple Index

华中理工大学：http://pypi.hustunique.com/

山东理工大学：http://pypi.sdutlinux.org/

若无奈连贯

WARNING: The repository located at pypi.doubanio.com is not a trusted or secure host and is being ignored. If this repository is available via HTTPS we recommend you use HTTPS instead, otherwise you may silence this warning and allow it anyway with ‘–trusted-host pypi.doubanio.com’.
ERROR: Could not find a version that satisfies the requirement opencv-python (from versions: none)
ERROR: No matching distribution found for opencv-python

能够将源中的 http 改为 https

须要 user

Could not install packages due to an EnvironmentError: [Errno 13] Permission denied: ‘/anaconda3/lib/python3.7/site-packages/llvmlite-0.28.0.dist-info’
Consider using the --user option or check the permissions.

须要加上 –user：pip install <module> 改为 pip install –user <module>

pip install --user -i https://pypi.tuna.tsinghua.edu.cn/simple torch

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代码的路