Adding py3.12

[ml31415]

Updades for py.3.12. Looks like the mamba xarray-tests environment isn't set up yet.

  /home/runner/micromamba-bin/micromamba create -y -r /home/runner/micromamba -f ci/environment.yml -n xarray-tests python=3.12 conda --log-level warning --rc-file /home/runner/micromamba-bin/.condarc
  error    libmamba Could not solve for environment specs
      The following packages are incompatible
      ├─ conda is installable with the potential options
      │  ├─ conda [22.11.1|22.9.0|...|4.14.0] would require
      │  │  └─ python_abi 3.10.* *_cp310, which can be installed;
      │  ├─ conda [22.11.1|22.9.0|...|23.9.0] would require
      │  │  └─ python_abi 3.11.* *_cp311, which can be installed;
      │  ├─ conda [22.9.0|4.10.0|...|4.9.2] would require
      │  │  └─ python_abi 3.7.* *_cp37m, which can be installed;
      │  ├─ conda [22.11.1|22.9.0|4.14.0] would require
      │  │  └─ python_abi 3.8 *_pypy38_pp73, which can be installed;
      │  ├─ conda [22.11.1|22.9.0|...|4.9.2] would require
      │  │  └─ python_abi 3.8.* *_cp38, which can be installed;
      │  ├─ conda [22.11.1|22.9.0|4.14.0] would require
      │  │  └─ python_abi 3.9 *_pypy39_pp73, which can be installed;
      │  ├─ conda [22.11.1|22.9.0|...|4.9.2] would require
      │  │  └─ python_abi 3.9.* *_cp39, which can be installed;
      │  ├─ conda [4.1.11|4.1.12|...|4.8.2] would require
      │  │  └─ python [2.7* |>=2.7,<2.8.0a0 ], which can be installed;
      │  ├─ conda [4.1.11|4.1.12|4.2.13] would require
      │  │  └─ python 3.4* , which can be installed;
      │  ├─ conda [4.1.11|4.1.12|...|4.5.9] would require
      │  │  └─ python [3.5* |>=3.5,<3.6.0a0 ], which can be installed;
      │  ├─ conda [4.10.0|4.10.1|...|4.9.2] would require
      │  │  └─ python_abi 3.6.* *_cp36m, which can be installed;
      │  ├─ conda [4.10.0|4.10.1|...|4.9.2] would require
      │  │  └─ python_abi 3.6 *_pypy36_pp73, which can be installed;
      │  ├─ conda [4.10.1|4.10.2|...|4.13.0] would require
      │  │  └─ python_abi 3.7 *_pypy37_pp73, which can be installed;
      │  ├─ conda [4.2.13|4.3.21|...|4.5.1] would require
      │  │  └─ python 3.6* , which can be installed;
      │  ├─ conda [4.5.10|4.5.11|...|4.8.2] would require
      │  │  └─ python >=3.6,<3.7.0a0 , which can be installed;
      │  ├─ conda [4.5.11|4.5.12|...|4.8.2] would require
      │  │  └─ python >=3.7,<3.8.0a0 , which can be installed;
      │  ├─ conda [4.7.12|4.8.0|4.8.2] would require
      │  │  └─ python >=3.8,<3.9.0a0 , which can be installed;
      │  ├─ conda 4.8.3 would require
      │  │  └─ python_abi 2.7.* *_cp27mu, which can be installed;
      │  ├─ conda [23.1.0|23.3.0|...|23.7.3] would require
      │  │  └─ pypy3.8 >=7.3.11 , which can be installed;
      │  ├─ conda [23.1.0|23.3.0|...|23.7.3] would require
      │  │  └─ pypy3.9 >=7.3.11 , which can be installed;
      │  ├─ conda 23.7.4 would require
      │  │  └─ pypy3.9 >=7.3.12 , which can be installed;
      │  └─ conda 23.9.0 would require
      │     └─ pypy3.9 >=7.3.13 , which can be installed;
      └─ python 3.12**  is not installable because there are no viable options
         ├─ python 3.12.0 would require
         │  └─ python_abi 3.12.* *_cp312, which conflicts with any installable versions previously reported;
         └─ python 3.12.0rc3 would require
            └─ _python_rc, which does not exist (perhaps a missing channel).
  critical libmamba Could not solve for environment specs
  Error: The process '/home/runner/micromamba-bin/micromamba' failed with exit code 1

@dcherian any ideas?

[dcherian]

ci/environment.yml has numba so it won't solve on 3.12 yet. I think that's at least one issue. Try commenting out numba in environment.yml and see if you get the same error

[ml31415]

numba should be ready for 3.12 soon. Guess we can wait for that. numba/numba#9197