Anaconda环境bash前缀太长 [英] Anaconda environment bash prefix too long

问题描述

我在项目文件夹中创建了anaconda环境，该文件夹使用-p选项指定了路径，即不在默认的anaconda3/envs文件夹中:

I created an anaconda environment in a project folder specifying the path with -p option, i.e. not in the default anaconda3/envs folder:

conda create -p venv

问题是，当我激活该环境时，终端中的bash前缀太长，即它将环境的整个路径添加到提示中:

The problem is that when I activate that environment, the bash prefix in the terminal is too long, i.e. it prepends the entire path of the environment to the prompt:

(/path/to/the/environment/venv) user@machine: ~/path/to/environment/$

有没有办法解决这个问题，这意味着将其缩短或从提示中删除前缀?

Is there a way to fix this, meaning make it shorter or delete the prefix from prompt?

我的$ PS1:

\[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$

推荐答案

Conda提示自定义

自 Conda v4.6.0 提供了env_prompt配置选项，可以自定义PS1更改.这是说明:

Conda Prompt Customization

Since Conda v4.6.0 there has been the env_prompt configuration option to provide for customization of the PS1 change. Here is the description:

$ conda config --describe env_prompt
# # env_prompt (str)
# #   Template for prompt modification based on the active environment.
# #   Currently supported template variables are '{prefix}', '{name}', and
# #   '{default_env}'. '{prefix}' is the absolute path to the active
# #   environment. '{name}' is the basename of the active environment
# #   prefix. '{default_env}' holds the value of '{name}' if the active
# #   environment is a conda named environment ('-n' flag), or otherwise
# #   holds the value of '{prefix}'. Templating uses python's str.format()
# #   method.
# # 
# env_prompt: '({default_env}) '

一个可以帮助您解决问题的方法是仅使用{name}变量

One option that would help with your case would be to just use the {name} variable

conda config --set env_prompt '({name}) '

将仅显示环境的文件夹名称.例如，您的示例为

which will show only the env's folder name. E.g., your example would be

(venv) user@machine: ~/path/to/environment/$

注意，这样做会使得当 base env处于活动状态时，提示将显示(anaconda3)而不是(base)；否则，其他命名的envs应该照常出现.

Note, this will make it so that when the base env is active the prompt will show (anaconda3) instead of (base); otherwise, the other named envs should appear as usual.

如果您真的不能忍受，可以在未命名的env上运行basename {default_env}以获得与{name}相同的结果，并且仍然保留base.也就是说，

If you really can't stand that, you could run basename {default_env} to get the same result as {name} on unnamed envs and still retain base. That is,

conda config --set env_prompt '(\$(basename {default_env})) '

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