iPython与不同的env(使用anaconda) [英] iPython with different env (using anaconda)
问题描述
我刚刚使用anaconda(称为python35)创建了一个带有python 3.5的新环境。我的根env指向python 2.7.11。我似乎无法使用这个新的env启动ipython,这就是我做的事情
I have just created a new env with python 3.5 using anaconda (called it python35). My root env points to python 2.7.11. I cant seem to launch ipython with this new env, here is what I did
1. in conda prompt, activate required env: activate python35
2. confirm the version: python --version
3. launch ipython: ipython notebook
4. open a notebook and do: import sys; print (sys.version)
步骤#2,返回3.5,但步骤#4总是给我2.7。 11,它像ipython一样从root env中获取python版本。我该如何解决。感谢您的帮助!
Step #2, returns 3.5 but step #4 always gives me 2.7.11, its like ipython is picking up python version from root env. How do I fix this. Thanks for any help!
这个问题是相关的,但我已经完成了它的建议。
This question is related but I have already done what it suggests.
推荐答案
AFAIK,anaconda(以及venv中)的不同环境由预先 env路径激活到 $ PATH
环境变量。这意味着,如果在env路径中找不到某个文件(例如 ipython
)( $ PATH
),系统在 $ PATH
的后续条目中搜索它,并在根环境中找到它(保留在 $ PATH
)。要修复此行为,您需要将自己的 ipython
副本安装到anaconda env:
AFAIK, different environments in anaconda (and in venv as well) are activated by prepending env path to $PATH
environment variable. It means, that if some file (eg, ipython
) is not found in env path (the first entry of $PATH
), the system searches for it in consequent entries of $PATH
and finds it in root environment (that stays in $PATH
). To fix the behavior, you need to install its own copy of ipython
to anaconda env:
- 在命令提示符下,激活环境:
source activate python35
(或简单地激活python35
,具体取决于操作系统) - 在环境中,发出命令
conda install ipython-notebook
- In command prompt, activate the environment:
source activate python35
(or simplyactivate python35
, depending on the OS) - While in environment, issue the command
conda install ipython-notebook
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