anaconda - Conda activate not working?

Question

 gonzo  ~/a/packages  conda env list
# conda environments:
#
ppo_latest               /nohome/jaan/abhishek/anaconda3/envs/ppo_latest
root                  *  /nohome/jaan/abhishek/anaconda3

 gonzo  ~/a/packages  conda activate ppo_latest
 gonzo  ~/a/packages  which python                                                                                     (ppo_latest)
/nohome/jaan/abhishek/anaconda3/bin/python
 gonzo  ~/a/packages  conda deactivate                                                                                 (ppo_latest)
 gonzo  ~/a/packages  which python
/nohome/jaan/abhishek/anaconda3/bin/python

The environment gets activated without an error. Then we check which python it is referring to it. It is doesn't change, why?

Answer 1

As of conda 4.4, the command

conda activate <envname>

is the same on all platforms. The procedure to add conda to the PATH environment variable for non-Windows platforms (on Windows you should use the Anaconda Prompt), as well as the change in environment activation procedure, is detailed in the release notes for conda 4.4.0.

---

For conda versions older than 4.4, command is either

source activate <envname>

on Linux and macOS or

activate <envname>

on Windows. You need to remove the conda.