I tried that, too. See below.
(env_pytorch) [asidasi@hpcc ~]$ which python
~/.conda/envs/env_pytorch/bin/python
(env_pytorch) [asidasi@hpcc ~]$ ~/.conda/envs/env_pytorch/bin/python -c “import torch”
Traceback (most recent call last):
File “”, line 1, in 
ModuleNotFoundError: No module named ‘torch’
(env_pytorch) [asidasi@hpcc ~]$