ci: test on Python 3.14

[weiji14]

Python 3.14 to be released on 7 Oct 2025, changelog at https://docs.python.org/3.14/whatsnew/3.14.html

Related to conda-forge/rustac-feedstock#9

[weiji14]

Error from https://github.com/stac-utils/rustac-py/actions/runs/17749865147/job/50442524464?pr=159#step:7:16

Using CPython 3.14.0rc2 interpreter at: /home/runner/.local/bin/python3.14
Creating virtual environment at: .venv
Resolved 149 packages in 0.68ms
error: Distribution `obstore==0.8.1 @ registry+[https://pypi.org/simple`](https://pypi.org/simple%60) can't be installed because it doesn't have a source distribution or wheel for the current platform

hint: You're using CPython 3.14 (`cp314`), but `obstore` (v0.8.1) only has wheels with the following Python ABI tags: `cp311`, `cp312`, `cp313`

Need to get obstore to release an sdist or Python 3.14 wheels on PyPI it seems.

[weiji14]

Ok, now blocked by pyogrio==0.11.0 (dependency of geopandas) at https://github.com/stac-utils/rustac-py/actions/runs/17779980323/job/50536783872?pr=159#step:7:128

Details

   Building pandas==2.3.0
  × Failed to build `pyogrio==0.11.0`
  ├─▶ The build backend returned an error
  ╰─▶ Call to `setuptools.build_meta.build_wheel` failed (exit status: 1)

      [stderr]
      Traceback (most recent call last):
        File "<string>", line 11, in <module>
          wheel_filename =
      backend.build_wheel("/home/runner/work/_temp/setup-uv-cache/builds-v0/.tmpfWeulK",
      {}, None)
        File
      "/home/runner/work/_temp/setup-uv-cache/builds-v0/.tmpztPHC1/lib/python3.14/site-packages/setuptools/build_meta.py",
      line 432, in build_wheel
          return _build(['bdist_wheel'])
        File
      "/home/runner/work/_temp/setup-uv-cache/builds-v0/.tmpztPHC1/lib/python3.14/site-packages/setuptools/build_meta.py",
      line 423, in _build
          return self._build_with_temp_dir(
                 ~~~~~~~~~~~~~~~~~~~~~~~~~^
              cmd,
              ^^^^
          ...<3 lines>...
              self._arbitrary_args(config_settings),
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
          )
          ^
        File
      "/home/runner/work/_temp/setup-uv-cache/builds-v0/.tmpztPHC1/lib/python3.14/site-packages/setuptools/build_meta.py",
      line 404, in _build_with_temp_dir
          self.run_setup()
          ~~~~~~~~~~~~~~^^
        File
      "/home/runner/work/_temp/setup-uv-cache/builds-v0/.tmpztPHC1/lib/python3.14/site-packages/setuptools/build_meta.py",
      line 317, in run_setup
          exec(code, locals())
          ~~~~^^^^^^^^^^^^^^^^
        File "<string>", line 154, in <module>
        File "<string>", line 129, in get_gdal_config
        File "<string>", line 85, in get_gdal_config
        File "<string>", line 39, in read_response
        File
      "/home/runner/.local/share/uv/python/cpython-3.14.0rc2-linux-x86_64-gnu/lib/python3.14/subprocess.py",
      line 472, in check_output
          return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
                 ~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                     **kwargs).stdout
                     ^^^^^^^^^
        File
      "/home/runner/.local/share/uv/python/cpython-3.14.0rc2-linux-x86_64-gnu/lib/python3.14/subprocess.py",
      line 554, in run
          with Popen(*popenargs, **kwargs) as process:
               ~~~~~^^^^^^^^^^^^^^^^^^^^^^
        File
      "/home/runner/.local/share/uv/python/cpython-3.14.0rc2-linux-x86_64-gnu/lib/python3.14/subprocess.py",
      line 1038, in __init__
          self._execute_child(args, executable, preexec_fn, close_fds,
          ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                              pass_fds, cwd, env,
                              ^^^^^^^^^^^^^^^^^^^
          ...<5 lines>...
                              gid, gids, uid, umask,
                              ^^^^^^^^^^^^^^^^^^^^^^
                              start_new_session, process_group)
                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File
      "/home/runner/.local/share/uv/python/cpython-3.14.0rc2-linux-x86_64-gnu/lib/python3.14/subprocess.py",
      line 1970, in _execute_child
          raise child_exception_type(errno_num, err_msg, err_filename)
      FileNotFoundError: [Errno 2] No such file or directory: 'gdal-config'

      hint: This usually indicates a problem with the package or the build
      environment.
  help: `pyogrio` (v0.11.0) was included because `rustac:dev` depends on
        `geopandas` (v1.1.0) which depends on `pyogrio`

Need to wait for geopandas/pyogrio#560 to add Python 3.14 support (or figure out GDAL deps 😛)

[weiji14]

Bumping rasterio to 1.4.4rc0 to get the Python 3.14 wheels, but should probably wait for an official non-RC release, xref rasterio/rasterio#3406

[gadomski]

rasterio is only needed for dev, so I'm ok depending on a pre-release if it unblocks wheels.

[weiji14]

rustac-py is already releasing abi3 wheels on https://pypi.org/project/rustac/0.9.2/#files, so they should be installable on Python 3.14 already. The change here only affects CI testing.

In any case, it sounds like rasterio 1.4.4 should be out in two days, so shouldn't need to wait too long.