Can we get a new release with scheduled deprecations removed

[lbluque]

Python version

Python 3.12

Pymatgen version

v2024.11.13

Operating system version

No response

Current behavior

The latest release v2024.11.13 does not have deprecated functions past their deadlines removed:

/opt/hostedtoolcache/Python/3.9.21/x64/lib/python3.9/site-packages/pymatgen/io/ase.py:16: in <module>
    from pymatgen.core.structure import Molecule, Structure
/opt/hostedtoolcache/Python/3.9.21/x64/lib/python3.9/site-packages/pymatgen/core/__init__.py:12: in <module>
    from pymatgen.core.composition import Composition
/opt/hostedtoolcache/Python/3.9.21/x64/lib/python3.9/site-packages/pymatgen/core/composition.py:22: in <module>
    from pymatgen.core.periodic_table import DummySpecies, Element, ElementType, Species, get_el_sp
/opt/hostedtoolcache/Python/3.9.21/x64/lib/python3.9/site-packages/pymatgen/core/periodic_table.py:63: in <module>
    class ElementBase(Enum):
/opt/hostedtoolcache/Python/3.9.21/x64/lib/python3.9/site-packages/pymatgen/core/periodic_table.py:7[55](https://github.com/FAIR-Chem/fairchem/actions/runs/12676568814/job/35330031581?pr=963#step:7:56): in ElementBase
    @deprecated(is_rare_earth, message="is_rare_earth is corrected to include Y and Sc.", deadline=(2025, 1, 1))
/opt/hostedtoolcache/Python/3.9.21/x64/lib/python3.9/site-packages/monty/dev.py:1[57](https://github.com/FAIR-Chem/fairchem/actions/runs/12676568814/job/35330031581?pr=963#step:7:58): in deprecated
    raise_deadline_warning()
/opt/hostedtoolcache/Python/3.9.21/x64/lib/python3.9/site-packages/monty/dev.py:86: in raise_deadline_warning
    raise DeprecationWarning(
E   DeprecationWarning: This function should have been removed on 2025-01-01.

Expected Behavior

A new release with the deprecated functions removed.

Minimal example

No response

Relevant files to reproduce this bug

No response

[DanielYang59]

Hi @lbluque happy new year.

Looks like you might be using Python 3.9, and unfortunately both pymatgen and monty have dropped Python 3.9 support.

If you have to use Python 3.9, you might need to temporarily remove the CI environment variable to disable the deprecation check for now, #4243 (comment)

If you're happy to move to Python 3.10 and onwards, the latest monty 2025.1.3 has fixed this issue so you wouldn't get that deprecation exception anymore

---

Update: I have opened a PR to revert Python 3.9 support for monty, if this got accepted, no workaround might be needed:

• Re-add python 3.9 support materialsvirtuallab/monty#739

[DanielYang59]

@lbluque A new release of monty (which supports Python 3.9) is out, and a pymatgen release too.

[lbluque]

Thanks a lot @DanielYang59 for the timely response and release!

[DanielYang59]

No problem, I'm not a maintainer so the credit goes to Shyue.

I learned a lot from your nearest neighbor code as well BTW :)