Python 3.13: Account for dedented docstrings

[penguinpee]

• Dedent docstrings in Python 3.13+
• Fix Two tests are failing in 5.2.1 with Python 3.13.0a5 #1311
• Ref: Automatically dedent docstring constants by default python/cpython#81283

[codecov]

Codecov Report

Attention: Patch coverage is 42.85714% with 4 lines in your changes are missing coverage. Please review.

Project coverage is 92.23%. Comparing base (e5cd0e8) to head (9fa116b).

Files	Patch %	Lines
nibabel/deprecator.py	42.85%	3 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1315      +/-   ##
==========================================
- Coverage   92.26%   92.23%   -0.03%     
==========================================
  Files          99       99              
  Lines       12472    12479       +7     
  Branches     2566     2568       +2     
==========================================
+ Hits        11507    11510       +3     
- Misses        642      645       +3     
- Partials      323      324       +1     

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[effigies]

This looks good. Would you mind building the docs with 3.13 and taking a screenshot of a deprecated function? onetime.setattr_on_read should work.

[penguinpee]

Well, this was a painful ask seeing that the top level Makefile still references setup.py which has been removed more than a year ago. It even calls sutup.py build. Ouch!

Anyway, I hope this is what you were asking for:

If not, let me know. I have the entire HTML docs build with Python 3.13 available now.

[effigies]

Sorry, I always use make -C doc html, so I don't often notice problems in the top-level Makefile.

Thanks for going to the effort, that looks good to me.

[penguinpee]

Sorry, I always use make -C doc html, so I don't often notice problems in the top-level Makefile.

Well, I was just following the instructions. PR #1316 will make sure other users like me have a less painful experience.