But does it really improve readability? Personally, I don't think it does - in neither case; unless it's really pathological, but then it shouldn't all be forced into a single list comprehension.
Well, it certainly doesn't help readability if parts of a line are cut off or the editor has to do an ugly linewrap, spoiling indentation. So as long as it doesn't significantly decrease readability for those corner cases and the benefits outweigh the drawbacks, I'm all for certain code conventions.
