默认情况下，conda命令在conda环境中不可用 [英] conda command not available in conda environment per default

问题描述

为什么我不能从conda环境中更新conda，但是可以使用它？

Why I cannot update conda from a conda environment, but I can use it?

示例

我可以从 root

[ravas@localhost ~]$ source activate
(base) [ravas@localhost ~]$ conda update conda
Solving environment: done

# All requested packages already installed.

我无法从 p36 更新它：

(base) [ravas@localhost ~]$ source activate p36
(p36) [ravas@localhost ~]$ conda update conda

PackageNotInstalledError: Package is not installed in prefix.
  prefix: /home/ravas/miniconda3/envs/p36
  package name: conda

这似乎是由于未在 p36

(base) [ravas@localhost ~]$ conda list | grep conda
# packages in environment at /home/ravas/miniconda3:
anaconda-client           1.7.1                    py37_0  
anaconda-navigator        1.9.2                    py37_0  
conda                     4.5.11                   py37_0  
conda-env                 2.6.0                         1  

(p36) [ravas@localhost ~]$ conda list | grep conda
# packages in environment at /home/ravas/miniconda3/envs/p36:
anaconda                  5.3.0                    py36_0  
anaconda-client           1.7.2                    py36_0  
anaconda-project          0.8.2                    py36_0  
pdfminer.six              20170720                 py36_0    conda-forg

但是，从 p36 我可以使用conda

However, from p36 I can use conda

(p36) [ravas@localhost ~]$ conda update anaconda
Solving environment: done

# All requested packages already installed.

为什么？

推荐答案

conda 未安装在新环境中。但是您可以在这样的派生环境中获得 conda ：

conda is not installed in the new environment. But you can get a conda in that derived environment like this:

• 激活基本环境


• 激活其他环境


• 运行 conda安装conda

• activate the base environment
• activate your other environment
• run a conda install conda

现在您在另一个环境中有一个 conda ，并且可以照常使用该环境。

Now you have a conda in that other environment, and work with that environment as usually.

这篇关于默认情况下，conda命令在conda环境中不可用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！