Missing cp310 wheels for river 0.23.0

[yokofly]

Versions

river version: 0.23.0
Python version: 3.10
Operating system: linux, ubuntu 22.04 (amd64)

Describe the bug

Hi, we maintain a DBMS project (https://github.com/timeplus-io/proton/) and our CI uses river for Python UDF tests. After the 0.23.0 release, we found that PyPI only provides wheels for Python 3.11 / 3.12 / 3.13 — no cp310 wheels. see https://pypi.org/project/river/0.23.0/#files

On Ubuntu 22.04 (Python 3.10), pip now falls back to building from source, which breaks our CI.

Is dropping Python 3.10 support intentional? If not, could cp310 wheels be restored?

Steps/code to reproduce

docker run -it --rm ubuntu:22.04 sh -c "
  apt-get update &&
  apt-get install -y python3 python3-pip &&
  pip3 install river==0.23.0
"

error:

Building wheels for collected packages: river
  Building wheel for river (pyproject.toml) ... error
  error: subprocess-exited-with-error
  
  × Building wheel for river (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [51 lines of output]
      A setup.py file already exists. Using it.
      Compiling river/drift/adwin_c.pyx because it changed.
      Compiling river/metrics/efficient_rollingrocauc/efficient_rollingrocauc.pyx because it depends on /tmp/pip-build-env-upid0g1f/overlay/local/lib/python3.10/dist-packages/Cython/Includes/libcpp/vector.pxd.
      Compiling river/metrics/expected_mutual_info.pyx because it changed.
      Compiling river/utils/vectordict.pyx because it changed.
      [1/4] Cythonizing river/drift/adwin_c.pyx
      [2/4] Cythonizing river/metrics/expected_mutual_info.pyx
      [3/4] Cythonizing river/utils/vectordict.pyx
      [4/4] Cythonizing river/metrics/efficient_rollingrocauc/efficient_rollingrocauc.pyx
      Traceback (most recent call last):
        File "/tmp/pip-install-bsk1hzmh/river_00c64a2929c941298ae9c07f5498f9f2/setup.py", line 82, in <module>
          setup(**setup_kwargs)
        File "/usr/lib/python3/dist-packages/setuptools/__init__.py", line 153, in setup
          return distutils.core.setup(**attrs)
        File "/usr/lib/python3/dist-packages/setuptools/_distutils/core.py", line 109, in setup
          _setup_distribution = dist = klass(attrs)
        File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 459, in __init__
          _Distribution.__init__(
        File "/usr/lib/python3/dist-packages/setuptools/_distutils/dist.py", line 293, in __init__
          self.finalize_options()
        File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 836, in finalize_options
          for ep in sorted(loaded, key=by_order):
        File "/usr/lib/python3/dist-packages/setuptools/dist.py", line 835, in <lambda>
          loaded = map(lambda e: e.load(), filtered)
        File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2464, in load
          self.require(*args, **kwargs)
        File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2487, in require
          items = working_set.resolve(reqs, env, installer, extras=self.extras)
        File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 782, in resolve
          raise VersionConflict(dist, req).with_context(dependent_req)
      pkg_resources.VersionConflict: (setuptools 59.6.0 (/usr/lib/python3/dist-packages), Requirement.parse('setuptools>=62.4'))
      Traceback (most recent call last):
        File "/usr/lib/python3/dist-packages/pip/_vendor/pep517/in_process/_in_process.py", line 363, in <module>
          main()
        File "/usr/lib/python3/dist-packages/pip/_vendor/pep517/in_process/_in_process.py", line 345, in main
          json_out['return_val'] = hook(**hook_input['kwargs'])
        File "/usr/lib/python3/dist-packages/pip/_vendor/pep517/in_process/_in_process.py", line 261, in build_wheel
          return _build_backend().build_wheel(wheel_directory, config_settings,
        File "/tmp/pip-build-env-upid0g1f/overlay/local/lib/python3.10/dist-packages/poetry/core/masonry/api.py", line 58, in build_wheel
          return WheelBuilder.make_in(
        File "/tmp/pip-build-env-upid0g1f/overlay/local/lib/python3.10/dist-packages/poetry/core/masonry/builders/wheel.py", line 95, in make_in
          wb.build(target_dir=directory)
        File "/tmp/pip-build-env-upid0g1f/overlay/local/lib/python3.10/dist-packages/poetry/core/masonry/builders/wheel.py", line 132, in build
          self._build(zip_file)
        File "/tmp/pip-build-env-upid0g1f/overlay/local/lib/python3.10/dist-packages/poetry/core/masonry/builders/wheel.py", line 193, in _build
          self._run_build_command(setup)
        File "/tmp/pip-build-env-upid0g1f/overlay/local/lib/python3.10/dist-packages/poetry/core/masonry/builders/wheel.py", line 288, in _run_build_command
          subprocess.check_call(
        File "/usr/lib/python3.10/subprocess.py", line 369, in check_call
          raise CalledProcessError(retcode, cmd)
      subprocess.CalledProcessError: Command '['/usr/bin/python3', '/tmp/pip-install-bsk1hzmh/river_00c64a2929c941298ae9c07f5498f9f2/setup.py', 'build', '-b', '/tmp/pip-install-bsk1hzmh/river_00c64a2929c941298ae9c07f5498f9f2/build', '--build-purelib', '/tmp/pip-install-bsk1hzmh/river_00c64a2929c941298ae9c07f5498f9f2/build/lib', '--build-platlib', '/tmp/pip-install-bsk1hzmh/river_00c64a2929c941298ae9c07f5498f9f2/build/lib.linux-x86_64-cpython-310']' returned non-zero exit status 1.
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for river
Failed to build river
ERROR: Could not build wheels for river, which is required to install pyproject.toml-based projects
➜  ~ 

[MaxHalford]

Hey there @yokofly, we indeed have a soft convention to only support the last 3 major versions of Python.

But happy to know you're using River. I can make a new release with Python 3.10. Hang tight!

[yokofly]

Thanks for the update! No rush on the 3.10 wheel — take your time. We've pinned to an older version for now, so everything is fine on our side.

If 3.10 is now outside the supported versions, adding a note in the release notes or metadata might help others understand the policy. Thanks again!

river/pyproject.toml

Lines 37 to 41 in a16d0f1

	[tool.poetry.dependencies]
	python = "^3.10"
	numpy = ">=1.23.0"
	scipy = "^1.14.1"
	pandas = "^2.2.3"