> Double spaces between sentences increase readability. This is not a bug.

hmm ok. I can see other docstring with not double spaces. But I will ignore. 

> Since abstractclassmethod and like are deprecated and should not be used in new code, I do not see a value of extending their docstrings. 

Ok, you are right. 

> Too verbose docstrings make using the module help less convenient. I would rather remove existing examples from docstrings. The module documentation contains more modern examples.

Do you say that is convenient remove the examples? I can do it! But in defense of the examples on docstring I think those are good, because the are the most quickly reference when coding and those are use by IDE.