Greatly appreciated effort here, thank you.

cloned your latest repository, created an environment as per instructions. Noted in the environment.yml we have entires for pymc3 and pymc-theano, but not for pymc.

The first cell of chp2 is:

import arviz as az
import matplotlib.pyplot as plt
import numpy as np
import pymc as pm
import scipy.stats as stats

Output

ModuleNotFoundError Traceback (most recent call last)
Input In [9], in <cell line: 4>()
2 import matplotlib.pyplot as plt
3 import numpy as np
----> 4 import pymc as pm
5 import scipy.stats as stats

ModuleNotFoundError: No module named 'pymc'