Create new conda environments. More information: https://docs.conda.io/projects/conda/en/latest/commands/create.html.
py39
, and install Python 3.9 and NumPy v1.11 or above in it:conda create --yes --name py39 python=3.9 "numpy>=1.11"
conda create --clone py39 --name py39-copy
conda create --name env_name package