问题描述
我在conda管理下有多个环境，如下所示
I have multiple environments under my conda management, as shown below
ss-MacBook-Pro$ conda env list
# conda environments:
#
base * /miniconda2
testenv /miniconda2/envs/testenv
testenvpy3 /miniconda2/envs/testenvpy3
我可以安装在多个环境中都有效的软件包吗？通过阅读，我的印象是不可能的，因为如果我这样做
Can I install a package that becomes effective across multiple environments? By reading the documentation, I got the impression that it is NOT possible, because if I do
conda install package-name
它将仅安装到 base 环境（当前活动环境）中，但不适用于其他环境。我记得以前可以通过某种方式在virtualenv下实现对多个环境有效的软件包。
it will only get installed into the base environment (the current active environment), but it does not apply to other environments. I remember I can somehow achieve install a package effective to multiple environments under virtualenv before.
有人可以分享建议吗？
推荐答案
conda install 仅安装当前（激活）环境的软件包。文件将安装在特定环境的目录中。如果要在所有环境中使用特定的程序包，则必须针对每个环境 conda安装该程序包（基本， testenv ， testenvpy3 ）。
conda install only installs packages for the current (activated) environment. Files will be installed in the directory for the specific environment. If you want a specific package in all environments, you'll have to conda install that package for each of your environments (base, testenv, testenvpy3).
到在各种环境之间切换，只需激活要切换到的环境即可。语法取决于Anaconda版本或您的操作系统。对于较新的Anaconda版本， conda激活< env名称> 起作用，对于较旧的版本， source激活< env名称> 对于Unix系统，激活< env名称> 对于Windows。
To switch between environments you just need to activate the one you switch to. The syntax depends Anaconda version or your OS. For newer Anaconda versions, conda activate <env name> works, and for older versions, source activate <env name> for Unix systems and activate <env name> for Windows.
我确定您已经已经看过了，但是这里有一个有用的。
I'm sure you've looked at this already, but here's a helpful link.
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