While supported, list comprehensions that are multiple levels deep isn't considered good style. There is an example of this in Google's python style guide: http

While supported, list comprehensions that are multiple levels deep isn't considered good style. There is an example of this in Google's python style guide: https://github.com/google/styleguide/blob/gh-pages/pyguide.md#27-comprehensions--generator-expressions https://github.com/google/styleguide/blob/gh-pages/pyguide.m...