Comment # 5 on bug 1128204 from Atri Bhattacharya

(Sorry for the many questions, but since I cannot reproduce the error on my
system, this is the only way I can figure out what is going wrong. I hope you
understand, even if this might be somewhat annoying.)

The line "No module named 'markups.mdx_mathjax..." may be worth pursuing
further. Can you please let me know what happens when you run the following
from a terminal:

python3 -c "import markups.mdx_mathjax as mj; print(mj.MathExtension)"

(On mine, I get <class 'markups.mdx_mathjax.MathExtension'> as the output.)