如何缓存下载的 PIP 包 [英] How to cache downloaded PIP packages

问题描述

如何防止 PIP 重新下载以前下载的软件包?我正在测试 matplotlib 的安装，这是一个 11MB 的软件包，它依赖于几个特定于发行版的软件包.每次我运行 pip install matplotlib 时，它都会重新下载 matplotlib.我该如何阻止?

How do you prevent PIP from re-downloading previously downloaded packages? I'm testing the install of matplotlib, an 11MB package that depends on several distro-specific packages. Everytime I run pip install matplotlib, it re-downloads matplotlib. How do I stop this?

推荐答案

您可以使用特定的环境变量 PIP_DOWNLOAD_CACHE 并使其指向将存储包的目录.如果要再次安装它们，它们将从这个目录中取出.

You can use a specific environment variable PIP_DOWNLOAD_CACHE and make it point to a directory where your packages will be stored. If they are to be installed again, they will be taken from this directory.

PIP pip --download-cache 似乎还有一个附加选项，它应该做类似的事情，但我自己从未尝试过.对于您的示例，为避免每次都重新下载 matplotlib，您将执行以下操作:

There seems to be also an additional option for PIP pip --download-cache which ought to do something similar, but I have never tried it myself. For your example, to avoid re-downloading matplotlib every time, you would do the following:

pip install --download-cache /path/to/pip/cache matplotlib

这是否回答了您的问题?

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