BUILD: Update wheels.yml and add Python 3.15 to the released versions

[charris]

This updates the dependencies in wheels.yml to match those in main and adds 3.15/3.15t to the list of python versions for which we build wheels.

[charris]

We may want to update Cython and Pytest as well.

[rgommers]

Looks like the Cython limited API tests are very unhappy on Windows for some reason.

[charris]

Looks like the Cython limited API tests are very unhappy

Yeah, that seems to need something in the 3.3 series.

[rgommers]

3.15t does pass, just GIL-enabled 3.15 is failing. @ngoldbaum does it look familiar to you?

[ngoldbaum]

The error is:

2026-08-06T13:25:30.0000992Z FAILED: limited_api_opaque.pyd 
2026-08-06T13:25:30.0002348Z "link"  /MACHINE:x64 /OUT:limited_api_opaque.pyd limited_api_opaque.pyd.p/limited_api.c.obj "/release" "/nologo" "/OPT:REF" "/DLL" "/IMPLIB:limited_api_opaque.lib" "/NODEFAULTLIB:python315.lib" "C:\Users\runneradmin\AppData\Local\pypa\cibuildwheel\Cache\nuget-cpython\python.3.15.0-rc1\tools\libs\python3.lib" "kernel32.lib" "user32.lib" "gdi32.lib" "winspool.lib" "shell32.lib" "ole32.lib" "oleaut32.lib" "uuid.lib" "comdlg32.lib" "advapi32.lib"
2026-08-06T13:25:30.0002521Z LINK : fatal error LNK1104: cannot open file 'python3t.lib'
2026-08-06T13:25:30.0002527Z 

So it's trying to build the opaque limited API extension test extension on the GIL-enabled build. I think that should technically work (as long as it doesn't depend on meson). The quickest fix is probably just to disable it in the build.

[charris]

@ngoldbaum It works on the main branch, so we seem to be missing a backport somewhere. Does that ring a bell?

[ngoldbaum]

I think the maintenance branch is missing the meson.build hunk in numpy/numpy#31582.

[charris]

meson.build in main has 'python.allow_limited_api=false'

[ngoldbaum]

That shouldn't be backported. It's to support Pratham's internship work.

[charris]

close/reopen