conda将python版本更改为2到3之间

Question

I'm learning using conda to control environment of python in windows 10 powershell, following this doc .

It says the current environment should be shown parentheses or brackets

Which of these environments are you using right now – snowflakes or bunnies? To find out, type the same command:

conda info --envs

Conda displays the list of all environments, with the current environment shown in (parentheses) or [brackets] in front of your prompt:

(snowflakes)

NOTE: conda also puts an asterisk (*) in front of the active environment in your environment list; see above in “List all environments.”

My questions are: 1. why i don't see parentheses/brackets

2. why activate python2 does work?

Code at powershell:

PS C:\\Users\\yzhang> conda info --envs

conda environments:

python2 d:\\Anaconda3\\envs\\python2

root * d:\\Anaconda3

PS C:\\Users\\yzhang> activate python2

prepending d:\\Anaconda3\\envs\\python2 and d:\\Anaconda3\\envs\\python2\\Library\\mingw-w64\\bin and d:\\Anaconda3\\env s\\python2\\Library\\usr\\bin and d:\\Anaconda3\\envs\\python2\\Library\\bin and d:\\Anaconda3\\envs\\python2\\Scripts to PATH

PS C:\\Users\\yzhang> conda info --envs

conda environments:

python2 d:\\Anaconda3\\envs\\python2

root * d:\\Anaconda3

PS C:\\Users\\yzhang> python --version

Python 3.5.1 :: Anaconda 4.0.0 (64-bit)

I've verified there's python27 in path d:\\\\Anaconda3\\\\envs\\\\python2

Answer 1

Full support for activate / deactivate in Windows PowerShell has not currently been implemented. There is an open Pull Request at https://github.com/conda/conda/pull/2366 that you may be interested in tracking.