install on python 3.13 fails

[hoogerheide]

pip install fails on python 3.13

Error message:

  error: subprocess-exited-with-error
  
  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [24 lines of output]
      Traceback (most recent call last):
        File "/storage/dph/mambaforge/envs/molweb/lib/python3.13/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in <module>
          main()
          ~~~~^^
        File "/storage/dph/mambaforge/envs/molweb/lib/python3.13/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 335, in main
          json_out['return_val'] = hook(**hook_input['kwargs'])
                                   ~~~~^^^^^^^^^^^^^^^^^^^^^^^^
        File "/storage/dph/mambaforge/envs/molweb/lib/python3.13/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 118, in get_requires_for_build_wheel
          return hook(config_settings)
        File "/tmp/pip-build-env-795f66fi/overlay/lib/python3.13/site-packages/setuptools/build_meta.py", line 332, in get_requires_for_build_wheel
          return self._get_build_requires(config_settings, requirements=[])
                 ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/pip-build-env-795f66fi/overlay/lib/python3.13/site-packages/setuptools/build_meta.py", line 302, in _get_build_requires
          self.run_setup()
          ~~~~~~~~~~~~~~^^
        File "/tmp/pip-build-env-795f66fi/overlay/lib/python3.13/site-packages/setuptools/build_meta.py", line 503, in run_setup
          super().run_setup(setup_script=setup_script)
          ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/pip-build-env-795f66fi/overlay/lib/python3.13/site-packages/setuptools/build_meta.py", line 318, in run_setup
          exec(code, locals())
          ~~~~^^^^^^^^^^^^^^^^
        File "<string>", line 51, in <module>
        File "<string>", line 48, in _guard_py_ver
      RuntimeError: Cannot install on Python version 3.13.0; only versions >=3.9,<3.13 are supported.
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.

[bmaranville]

This seems to be due to numba not having Python 3.13 support... this is being tracked

• in the numba repo: Python 3.13 numba/numba#9413
• in the llvmlite repo: Python 3.13 support numba/llvmlite#1084
• and finally, in the conda-forge repo: Rebuild for python 3.13 conda-forge/numba-feedstock#148