virtualenv 可重定位——它真的有效吗 [英] virtualenv relocatable -- does it really work

问题描述

我一直在寻找答案，但没有找到.我有一个虚拟环境目录，一个带有 req.txt 的项目目录.当我运行 pip -r req.txt 时，它会安装一些来自 github(源)的应用程序和一些来自 pypi 的应用程序.在对虚拟 evn 进行可重定位调用后，来自 pypi 的那些很好，但是它从 github 安装的应用程序的站点包中的链接仍然指向旧目录位置.

I kept looking for answer but didn't find one. I have a virtual env dir, a project dir with a req.txt. When I run pip -r req.txt, it installs some apps from github (source) and some from pypi. The ones from pypi are fine after relocatable call on the virtual evn, however the links in the site-packages for the apps that it installed from github still point to the old directory location.

其他人见过这种行为吗?有什么快速解决方法吗?此外，可重定位不尊重最初在 virtualenv 上使用的 --no-site-packages 标志.一旦您移动虚拟并重新激活它，所有内容都可以从系统的站点包中看到.文档表明这种行为是事实，所以我想知道是否有任何快速解决方法?

Anyone else has seen this behavior? Any quick way around it? Also, relocatable is not honoring the --no-site-packages flag that was used on the virtualenv originally. Once you move the virtual and reactivate it, everything is visible from the system's site-packages. Docs indicates this behavior as a fact, so I am wondering if there is any quick way around this?

推荐答案

如 文档 --relocatable 是一个实验性选项，因此您遇到困难也就不足为奇了.也就是说，您是否记得在安装新软件包后重新运行 --relocatable ?如果您使用 -e 安装了来自 github 的包，这可能是一个问题，因为它不会安装到站点包中，而是安装到它的符号链接中.作为使用 --relocatable 的替代方法，您通常可以擦除特定于 virtualenv 的文件并重新创建它(我在平台之间切换时已经做​​过几次).

As stated in the documentation --relocatable is an experimental option, so it's not surprising you are having difficulties with it. That said, did you remember to re-run --relocatable after installing new packages? If you installed the packages from github with -e, that might be an issue, as it doesn't install into site-packages, but symlinks into it. As an alternative to using --relocatable, you can usually erase the virtualenv-specific files and recreate it in place (which I've done a couple times when switching between platforms).

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