fix @field_validators are @classmethods

.pre-commit-config.yaml

@@ -2,7 +2,7 @@ default_language_version:
   python: python3
 repos:
 - repo: https://github.com/charliermarsh/ruff-pre-commit
-  rev: v0.1.0
+  rev: v0.1.1
   hooks:
   - id: ruff
     args: [--fix]

src/atomate2/amset/schemas.py

@@ -205,7 +205,7 @@ def from_directory(
             transport=transport,
             usage_stats=timing,
             kpoint_mesh=inter_mesh,
-            nkpoints=np.product(inter_mesh),
+            nkpoints=np.prod(inter_mesh),
             log=log,
             **mesh_kwargs,
         )

src/atomate2/cp2k/schemas/calculation.py

@@ -83,6 +83,7 @@ class CalculationInput(BaseModel):
     )
 
     @field_validator("atomic_kind_info", mode="before")
+    @classmethod
     def remove_unnecessary(cls, atomic_kind_info) -> dict:
         """Remove unnecessary entry from atomic_kind_info."""
         for k in atomic_kind_info:
@@ -91,6 +92,7 @@ def remove_unnecessary(cls, atomic_kind_info) -> dict:
         return atomic_kind_info
 
     @field_validator("dft", mode="before")
+    @classmethod
     def cleanup_dft(cls, dft) -> dict:
         """Convert UKS strings to UKS=True."""
         if any(v.upper() == "UKS" for v in dft.values()):

src/atomate2/vasp/sets/base.py

@@ -1116,7 +1116,7 @@ def _set_kspacing(
         # known before calling VASP, but a warning is raised when the KSPACING value is
         # > 0.5 (2 reciprocal Angstrom). An error handler in Custodian is available to
         # correct overly large KSPACING values (small number of kpoints) if necessary.
-        if np.product(kpoints.kpts) < 4 and incar.get("ISMEAR", 0) == -5:
+        if np.prod(kpoints.kpts) < 4 and incar.get("ISMEAR", 0) == -5:
             incar["ISMEAR"] = 0
 
     elif "KSPACING" in user_incar_settings: