conda 环境在 conda env 列表中没有可见的名称 - 如何在 shell 中激活它? [英] conda environment has no name visible in conda env list - how do I activate it at the shell?

问题描述

我在 anaconda-navigator 中创建了一个名为 B3 的环境.如果从导航器中启动它就可以正常工作.

I have created an environment called B3 inside anaconda-navigator. It works fine if launched from within navigator.

但是，当我想在 shell 中激活它时，我得到找不到 environmnet B3".

However, when I want to activate it at the shell, I get 'could not find environmnet B3.'

如果我使用 conda env list，环境是可见的，但它的名称是空白的.如果我尝试改用文件路径，我会得到不是 conda 环境".

If I use conda env list, the environment is visible but its name is blank. If I try using the file path instead, I get 'Not a conda environment.'

为什么缺少名称，如何从 shell 激活它?

Why is the name missing, and how can I activate it from the shell?

推荐答案

基于名称的 Conda 环境引用仅适用于位于 envs_dirs 配置选项中列出的目录之一的环境(请参阅 <代码>conda config --describe envs_dirs).默认情况下，这对应于 Conda 安装中的 envs/ 子目录.如果您在这些目录之一之外创建环境，则不能使用名称来引用它.相反，必须通过它的路径来激活它:

Name-based reference of Conda environments only works for environments located in one of the directories listed in the envs_dirs configuration option (see conda config --describe envs_dirs). By default this corresponds to the envs/ subdirectory in the Conda installation. If you create an env outside of one of these directories, then you cannot use a name to reference it. Instead, one must activate it by its path:

conda activate /home/julianhatwell/anaconda3/envs/B3

请注意，OP 最初有一个错字(anaconda2 应该是 anaconda3).在指出这一点后(见问题的评论)，提问者要求回答:

Note that OP originally had a typo (anaconda2 should have been anaconda3). After pointing this out (see comments to question), the questioner instead requested an answer to:

如何将无名环境转换为有名环境?"

以下是启用基于名称的激活的可能方法.

The following are possible ways to enabling name-based activation.

使用 conda activate B3 的一个选项是在默认目录中重新创建 B3 环境.您可以使用 --clone 标志来完成此操作.

One option to use conda activate B3, is to recreate your B3 env in the default directory. You can use the --clone flag to accomplish this.

conda create --clone path/to/the/nameless_env -n named_env

选项2:添加父目录

或者，您可以将相关环境的父目录添加到 envs_dirs 配置选项.

conda config --append envs_dirs /path/to/the/parent_dir

选项 3:符号链接

另一种可能性是在 envs_dirs 文件夹中创建一个符号链接到环境文件夹.它似乎有效，但它不是一种常见的做法，因此它可能具有未报告的缺点.

Option 3: Symbolic Link

Another possibility is to create a symbolic link in one to the envs_dirs folders to the environment folder. It seems to work, but it is not a common practice, so it may have downsides that are unreported.

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