powershell - 在 Windows 8.1 上使用 Anaconda 激活 python3 失败

Question

我想要同时拥有 Anaconda python v2 和 python v3 环境。我已经运行了两个 Anaconda 安装程序，在 Microsoft 的 powershell 中工作。然后创建 python3 环境，我运行:

PS C:\Users\jo> conda create -n py3 python=3.4
Fetching package metadata: ....
Solving package specifications: .
Package plan for installation in environment C:\Anaconda\envs\py3:

The following NEW packages will be INSTALLED:

    pip:        6.1.1-py34_0
    python:     3.4.3-0
    setuptools: 15.2-py34_0

Proceed ([y]/n)? y

Linking packages ...
[      COMPLETE      ]|##################################################| 100%
#
# To activate this environment, use:
# > activate py3
#

但是激活此环境会忽略新环境:

PS C:\Users\jo> activate py3
Activating environment "py3"...
PS C:\Users\jo> python
Python 2.7.9 |Anaconda 2.2.0 (64-bit)| (default, Dec 18 2014, 16:57:52)  [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
Anaconda is brought to you by Continuum Analytics.
Please check out: http://continuum.io/thanks and https://binstar.org
>>>

..正如我们通过查看已安装环境列表中当前的版本所看到的:

PS C:\Users\jo> conda env list
# conda environments:
#
py3                      C:\Anaconda\envs\py3
root                  *  C:\Anaconda

当理智清醒时，activate 命令通过修改路径变量来执行此切换。在这个环境中我还需要做其他事情才能使其正常工作吗？

Answer 1

先切换到cmd，然后激活py3:

> cmd
> activate py3