A small issue but my import statements get pretty lengthy by importing every function at the top. mne implemented pretty recently lazy_loader so that you can do import dipy and then dipy.align.affine_registration without having to do import dipy.align as well but you don't have the memory hit of having to load all the submodules at initialization. This seems like a nice convenience and it's a small dependency and a couple of lines in each init file (see https://github.com/mne-tools/mne-python/blob/main/mne/decoding/__init__.py for instance). Maybe worth an hour to add this?