MNT: remove setup.cfg

[neutrinoceros]

• MNT: move versioneer configuration to pyproject.toml
• CLN: drop unused pytest configuration from setup.cfg
• MNT: rename setup.cfg -> .flake8

[rgommers]

Why is the pytest config unused? A quick skim of the docs says it's picked up: https://docs.pytest.org/en/7.1.x/reference/customize.html#setup-cfg

I'd put it in pytest.ini normally, but it does seem to be doing something.

[rdbisme]

Maybe we want to decide if we want all things possile into pyproject.toml or in separate files. I'm more to go all in pyproject.toml (and move from flake8 to ruff)

[neutrinoceros]

Pytest doesn't compose configuration. pyproject.toml takes precedence over setup.cfg, so it's effectively ignored.

[neutrinoceros]

and move from flake8 to ruff

Happy to contribute this too in another PR

[rgommers]

LGTM, modulo the small merge conflict. +1 for flake8 -> ruff as well

[rgommers]

I'm new that web editor thingy, but this merge conflict seemed easy to resolve so I gave it a try.

[rgommers]

CI is unhappy, not related to this PR:

   Download from "https://github.com/actions/python-versions/releases/download/3.14.2-20014991423/python-3.14.2-win32-arm64-freethreaded.zip"
  Extract downloaded archive
  "C:\Program Files\PowerShell\7\pwsh.exe" -NoLogo -NoProfile -NonInteractive -ExecutionPolicy Unrestricted -Command "$ErrorActionPreference = 'Stop' ; try { Add-Type -AssemblyName System.IO.Compression.ZipFile } catch { } ; try { [System.IO.Compression.ZipFile]::ExtractToDirectory('C:\a\_temp\python-3.14.2-win32-arm64-freethreaded.zip', 'C:\a\_temp\2cd38d63-d0ad-42ab-ab33-b8896d01cda4', $true) } catch { if (($_.Exception.GetType().FullName -eq 'System.Management.Automation.MethodException') -or ($_.Exception.GetType().FullName -eq 'System.Management.Automation.RuntimeException') ){ Expand-Archive -LiteralPath 'C:\a\_temp\python-3.14.2-win32-arm64-freethreaded.zip' -DestinationPath 'C:\a\_temp\2cd38d63-d0ad-42ab-ab33-b8896d01cda4' -Force } else { throw $_ } } ;"
  Execute installation script
  Check if Python hostedtoolcache folder exist...
  Check if current Python version is installed...
  No Python3.14.* found
  Remove registry entries for Python 3.14(arm64-freethreaded)...
  Create Python 3.14.2 folder in C:\hostedtoolcache\windows\Python
  Copy Python binaries to C:\hostedtoolcache\windows\Python\3.14.2\arm64-freethreaded
  Install Python 3.14.2 in C:\hostedtoolcache\windows\Python...
  Error: Remove-Item : Cannot find path 'C:\hostedtoolcache\windows\Python\3.14.2\arm64-freethreaded\python.exe' because it 
  does not exist.

I'll see if I can resolve that.

[neutrinoceros]

@rgommers thanks for trying ! I'll rebase this for a cleaner history, and will also bake your comment about tomllib into metadata so we can't loose track of it !

[rgommers]

Thanks, time to get this in!