Python 3.13 compatibility

[jameswilburlewis]

basemap does not "pip install" cleanly under Python 3.13. Might be related to some of the pinned upper versions of package dependencies? This environment had numpy 1.26.4 installed (so not a numpy 2.0 issue).

(pycharm_py313) jwl@jwl-new-mac pyspedas_py313 % pip install basemap       
Collecting basemap
  Using cached basemap-1.3.9.zip (156 kB)
  Installing build dependencies ... error
  error: subprocess-exited-with-error

  × pip subprocess to install build dependencies did not run successfully.
  │ exit code: 1
  ╰─> [63 lines of output]
      Ignoring numpy: markers 'python_version == "3.10"' don't match your environment
      Ignoring numpy: markers 'sys_platform == "darwin" and (python_version >= "3.7" and python_version <= "3.9")' don't match your environment
      Ignoring numpy: markers 'sys_platform != "darwin" and (python_version >= "3.7" and python_version <= "3.9")' don't match your environment
      Ignoring numpy: markers 'python_version == "2.7" or (python_version >= "3.4" and python_version <= "3.6")' don't match your environment
      Ignoring numpy: markers 'python_version == "2.6" or (python_version >= "3.2" and python_version <= "3.3")' don't match your environment
      Ignoring cython: markers 'python_version == "3.2"' don't match your environment
      Collecting setuptools
        Using cached setuptools-75.4.0-py3-none-any.whl.metadata (6.8 kB)
      Collecting wheel
        Using cached wheel-0.45.0-py3-none-any.whl.metadata (2.3 kB)
      Collecting numpy==1.23.3
        Using cached numpy-1.23.3.tar.gz (10.7 MB)
        Installing build dependencies: started
        Installing build dependencies: finished with status 'done'
        Getting requirements to build wheel: started
        Getting requirements to build wheel: finished with status 'error'
        error: subprocess-exited-with-error

        × Getting requirements to build wheel did not run successfully.
        │ exit code: 1
        ╰─> [32 lines of output]
            Traceback (most recent call last):
              File "/Users/jwl/anaconda3/envs/pycharm_py313/lib/python3.13/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in <module>
                main()
                ~~~~^^
              File "/Users/jwl/anaconda3/envs/pycharm_py313/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 "/Users/jwl/anaconda3/envs/pycharm_py313/lib/python3.13/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 112, in get_requires_for_build_wheel
                backend = _build_backend()
              File "/Users/jwl/anaconda3/envs/pycharm_py313/lib/python3.13/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 77, in _build_backend
                obj = import_module(mod_path)
              File "/Users/jwl/anaconda3/envs/pycharm_py313/lib/python3.13/importlib/__init__.py", line 88, in import_module
                return _bootstrap._gcd_import(name[level:], package, level)
                       ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
              File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
              File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
              File "<frozen importlib._bootstrap>", line 1310, in _find_and_load_unlocked
              File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
              File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
              File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
              File "<frozen importlib._bootstrap>", line 1331, in _find_and_load_unlocked
              File "<frozen importlib._bootstrap>", line 935, in _load_unlocked
              File "<frozen importlib._bootstrap_external>", line 1022, in exec_module
              File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
              File "/private/var/folders/_4/hbrtgs_j1qlgl2f3fwjw2_kc0000gn/T/pip-build-env-83asxxgw/overlay/lib/python3.13/site-packages/setuptools/__init__.py", line 16, in <module>
                import setuptools.version
              File "/private/var/folders/_4/hbrtgs_j1qlgl2f3fwjw2_kc0000gn/T/pip-build-env-83asxxgw/overlay/lib/python3.13/site-packages/setuptools/version.py", line 1, in <module>
                import pkg_resources
              File "/private/var/folders/_4/hbrtgs_j1qlgl2f3fwjw2_kc0000gn/T/pip-build-env-83asxxgw/overlay/lib/python3.13/site-packages/pkg_resources/__init__.py", line 2172, in <module>
                register_finder(pkgutil.ImpImporter, find_on_path)
                                ^^^^^^^^^^^^^^^^^^^
            AttributeError: module 'pkgutil' has no attribute 'ImpImporter'. Did you mean: 'zipimporter'?
            [end of output]

[DWesl]

Failing in import setuptools.version is odd; does pip install --no-build-isolation basemap do the same thing?

[molinav]

Currently, Python 3.13 is still not supported by basemap (there is also a pin <3.13 for Python in setup.py). I am aware that Python 3.13 was released last October, and I would like to add the support, but currently I am a bit overloaded at my job.

Hopefully in December I will get some time free (aka Christmas present releases).