Remove nose references

[khushi-phougat]

Fixes #5085

Changes made in this Pull Request:

• Removed "nose" configuration from asv.conf.json
• Removed .noseids from .gitignore
• Removed comments referencing nose output in testsuite/MDAnalysisTests/utils/test_streamio.py

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.

Developers Certificate of Origin

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

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📚 Documentation preview 📚: https://mdanalysis--5212.org.readthedocs.build/en/5212/

[github-actions]

Hello there first time contributor! Welcome to the MDAnalysis community! We ask that all contributors abide by our Code of Conduct and that first time contributors introduce themselves on GitHub Discussions so we can get to know you. You can learn more about participating here. Please also add yourself to package/AUTHORS as part of this PR.

[Copilot]

Pull request overview

This PR removes all references to the nose testing framework from the MDAnalysis codebase, completing the migration to pytest.

Changes:

• Removed nose dependency from benchmarking configuration
• Removed nose-specific ignore patterns from version control
• Removed outdated nose-related comments from test files
• Added contributor name to AUTHORS file

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated no comments.

File	Description
.gitignore	Removed .noseids entry, which was specific to the nose test runner
benchmarks/asv.conf.json	Removed nose from the benchmark dependencies list
testsuite/MDAnalysisTests/utils/test_streamio.py	Removed outdated comments referencing nose verbose output
package/AUTHORS	Added "Khushi Phougat" to the 2026 contributors list

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.73%. Comparing base (4c12f15) to head (d411b31).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #5212   +/-   ##
========================================
  Coverage    92.72%   92.73%           
========================================
  Files          180      180           
  Lines        22475    22475           
  Branches      3190     3190           
========================================
+ Hits         20841    20843    +2     
+ Misses        1177     1176    -1     
+ Partials       457      456    -1     

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[IAyaanHere]

Hi @khushi-phougat, welcome to MDAnalysis! 🎉😊

I was just going through the PRs and pulled this locally to test. The cleanup looks really solid—I searched through the files and verified that all the nose-related configs are gone LGTM 🙌.

[khushi-phougat]

Hi @IAyaanHere , thank you for the welcome and for taking the time to review this. As this was my first contribution, I chose a really straightforward issue just to understand things, and was actually really doubtful if I'm doing it right or not. Happy to hear that this looks good :)