Once you have installed one of the above, PyMC can be installed into a new conda environment as follows:
conda create -c conda-forge -n pymc_env "pymc>=4" conda activate pymc_env
If you like, replace the name
pymc_env with whatever environment name you prefer.
If you wish to enable sampling using the JAX backend via NumPyro, the following should also be installed:
pip install numpyro
Similarly, to use BlackJAX for sampling it should be installed via
pip install blackjax
Note that JAX is not directly supported on Windows systems at the moment.