STYLE: Prefer absolute imports

[jhlegarreta]

Prefer absoulute import statements: Python PEP 8 recomends using absolute imports:
https://peps.python.org/pep-0008/#imports

"Absolute imports are recommended, as they are usually more readable and tend to be better behaved (or at least give better error messages) (...)."

[jhlegarreta]

Keeping this as a draft until a tag/release is made. xref: #67 (comment)

[demianw]

I disagree with this one. Most packages, for instance scikit learn or nilearn, for instance use relative imports.

[demianw]

Keeping this as a draft until a tag/release is made. xref: #67 (comment)

Please don't keep them as drafts if you want me to review them, just keep them as draft if they are work in progress. Even if you think we should make a tag/release

[jhlegarreta]

Nilearn recommends absolute imports even if they may not be consistent in their code base/may have switched preferences:
https://nilearn.github.io/stable/development.html#contribution-guidelines

scikit-learn recommends relative imports in their code base but absolute imports in unit tests:
https://scikit-learn.org/stable/developers/develop.html#coding-guidelines

I still believe absolute imports are helpful, but do not have other arguments at present.

[jhlegarreta]

Please don't keep them as drafts if you want me to review them, just keep them as draft if they are work in progress. Even if you think we should make a tag/release

Was keeping them as drafts to avoid accidentally merging them before tagging. I know tagging can be done from any given commit, but thought it was cleaner this way.

[demianw]

Let's keep this one for further discussion and continue moving forward with other PRs. Thanks for such a granular work !

If you look at sklearn's code, all imports are relative e. g. : https://github.com/scikit-learn/scikit-learn/blob/main/sklearn/linear_model/__init__.py