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Standardize atomicdistances to use results#5347

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charity-g wants to merge 11 commits intoMDAnalysis:developfrom
charity-g:standardize-atomicdistances-to-use-results
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Standardize atomicdistances to use results#5347
charity-g wants to merge 11 commits intoMDAnalysis:developfrom
charity-g:standardize-atomicdistances-to-use-results

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@charity-g
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@charity-g charity-g commented Mar 28, 2026

Fixes #4819

Changes made in this Pull Request:

LLM / AI generated code disclosure

LLMs or other AI-powered tools (beyond simple IDE use cases) were used in this contribution: no

PR Checklist

  • Issue raised/referenced?
  • Tests updated/added?
  • Documentation updated/added?
  • package/CHANGELOG file updated?
  • Is your name in package/AUTHORS? (If it is not, add it!)
  • LLM/AI disclosure was updated.

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I certify that I can submit this code contribution as described in the Developer Certificate of Origin, under the MDAnalysis LICENSE.


📚 Documentation preview 📚: https://mdanalysis--5347.org.readthedocs.build/en/5347/

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@BradyAJohnston BradyAJohnston left a comment

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Some suggestions that should fix the issues with running tests.

The black formatter is also failing. You can run it like this:

uvx black~=24.0 package

# MDAnalysis: A Toolkit for the Analysis of Molecular Dynamics Simulations.
# J. Comput. Chem. 32 (2011), 2319--2327, doi:10.1002/jcc.21787
#
from mdanalysis.package.MDAnalysis.analysis.results import Results
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This is what's causing your tests to fail - this mdanalysis.package.MDAnalysis only exists on local file system. You should always just import directly from MDAnalysis - which will become available if you us pip install -e . or uv pip install -e ..


"""

from mdanalysis.package.MDAnalysis.analysis.results import (
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same issue with imports as in other comment.

@orbeckst
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@charity-g based on discussion in #4822 (comment) we will continue with this PR. Have a look at @BradyAJohnston 's comments and feel free to take it out of draft mode.

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@orbeckst orbeckst left a comment

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The first thing is to make the code (and tests) run, following Brady's comments. Then please address my inline comments. Focus this PR just on the API change. CHANGELOG and docs must be very clear.

Number of atoms in each atom group.


.. versionadded:: 2.5.0
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do not remove any of the versionchanged/versionadded; just add the new one below

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and do not remove empty lines – they are necessary for the proper formatting

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analysis.atomicdistances.AtomicDistances does not use Results

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