Unit testing & version control

[tombackstrom]

While writing this, I know that the page noise attenuation has thrown an error and it is displayed in the live-version. It is due to a mismatch in package-versions and rather hard to sort out. I would like to have advice on how to sort this out.
In particular, first, I would like to hear suggestions on how to automatically identify such problems. Currently jupyter-book throws so much output, that it is very hard to notice if there is something important there as well. There are so many warnings which can be ignored that the important ones disappear into the pile.
Second, this is clearly a package-version issue. What would be the workflow where we can avoid this type of problems?

[tombackstrom]

Now at least the bug in noise attenutation was fixed. Also, I added a more specific list of requirements in requirements.txt. Perhaps that would help avoid such errors in the future.