How to activate conda environment from powershell?

Question

Version Anaconda 4.8.3

What I cannot do:
I can't activate any environment from powershell. conda activate base

What I can do:
conda env list conda create -n xxx conda remove -n xxx

I have tried many solutions, but they turn out to be useless:

1. conda init powershell
restart powershell
conda activate
   
   

2. conda update -n base conda and redo 1
   

3. conda install -n root -c pscondaenvs pscondaenvs
Set-ExecutionPolicy RemoteSigned
   Run activate base

The result of running conda activate

Solution 1

You don't need Admin permission.

Once you install Anaconda or Miniconda on Windows, open a Anaconda Powershell Prompt from Start Menu.

Or, If you don't see it there, then assuming you have installed miniconda3 at path C:\miniconda3\4.9.2, do:

powershell -ExecutionPolicy ByPass -NoExit -Command "& 'C:\miniconda3\4.9.2\shell\condabin\conda-hook.ps1' ; conda activate 'C:\miniconda3\4.9.2' "

Now try:

conda init powershell

and reopen powershell.

Additional note: By default conda will autoactivate itself, when we open terminal. If you prefer not, then disable auto-activation with:

conda config --set auto_activate_base false

Solution 2

Open a Anaconda Powershell Prompt from Start Menu. Now Try:

conda init powershell

Now restart the powershell, if find some error like this in powershell:

\WindowsPowerShell\profile.ps1 cannot be loaded because running scripts is disabled on this system. For more information, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170. At line:1 char:3

Then change the execution policy. Type this code to powershell:

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned

To find more with execution policy you can visit this link.

Solution 3

When you use Anaconda or Miniconda type in Anacondaprompt:

conda init powershell

Solution 4

Here is my easier solution which works with Anaconda, Miniconda, and even Miniforge:

1. Open Powershell and browse to condabin folder in your conda installation directory, for example: C:\Users\<username>\anaconda3\condabin
2. Run ./conda init powershell in that folder, and re-open the powershell.
3. Please note: If you encountered ps1 cannot be loaded because running scripts is disabled on this system, simply run the Powershell as Administrator and enter the following: Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy Unrestricted
4. Restart the Powershell & Enjoy!

Solution 5

In order to activate conda on Powershell, I just executed this command:

C:\Users\<username>\anaconda3\shell\condabin\conda-hook.ps1

Then I could see all environments without needing to restart Powershell.

conda env list
conda activate base

So you need to basically just run the conda-hook.ps1 script.

View more solutions

Comments

[AMC]

Were you running Powershell with elevated/admin permissions when you tried conda init ? There were no errors?

[Z Chen]

Yeah, I tried both admin and non-admin powershell, and the result turns out the same. " no change <path of some .exe's and .bat's>" @AMC

[CheTesta]

Solution looked promising, but actually it is not bypassing the restriction and after restart (with full modificatoin of files by conda) it is still not working properly. On restart the same \WindowsPowerShell\profile.ps1 cannot be loaded because running scripts is disabled on this system. For more information, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170. At line:1 char:3 (referencing the automatically created ps script)

[gcharbon]

In this case you simply need to unblock the file named profile.ps1: Unblock-File -Path .\profile.ps1 (replace relative path with full path) See Unblock-File cmdlet doc

[Winand]

without admin priviliges: Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser

[Deepak Saini]

Wow, this worked for me after trying multiple things