Pydantic failing py unit tests #24929
Description
Checks
- I have checked that this issue has not already been reported.
- I have confirmed this bug exists on the latest version of Polars.
Reproducible example
basic make test fails cd py-polars && make test
___________________________________________ ERROR collecting tests/unit/io/test_iceberg.py ____________________________________________
tests/unit/io/test_iceberg.py:19: in <module>
from pyiceberg.catalog.sql import SqlCatalog
../.venv/lib/python3.13/site-packages/pyiceberg/catalog/__init__.py:52: in <module>
from pyiceberg.serializers import ToOutputFile
../.venv/lib/python3.13/site-packages/pyiceberg/serializers.py:25: in <module>
from pyiceberg.table.metadata import TableMetadata, TableMetadataUtil
../.venv/lib/python3.13/site-packages/pyiceberg/table/__init__.py:84: in <module>
from pyiceberg.table.metadata import (
../.venv/lib/python3.13/site-packages/pyiceberg/table/metadata.py:347: in <module>
class TableMetadataV1(TableMetadataCommonFields, IcebergBaseModel):
../.venv/lib/python3.13/site-packages/pyiceberg/table/metadata.py:365: in TableMetadataV1
@model_validator(mode="after")
../.venv/lib/python3.13/site-packages/pydantic/functional_validators.py:725: in dec
warnings.warn(
E pydantic.warnings.PydanticDeprecatedSince212: Using `@model_validator` with mode='after' on a classmethod is deprecated. Instead, use an instance method. See the documentation at https://docs.pydantic.dev/2.12/concepts/validators/#model-after-validator. Deprecated in Pydantic V2.12 to be removed in V3.0.Error report:
======================================================= short test summary info =======================================================
ERROR tests/unit/io/test_iceberg.py - pydantic.warnings.PydanticDeprecatedSince212: Using `@model_validator` with mode='after' on a classmethod is deprecated. Instead, ...
ERROR tests/unit/io/test_iceberg.py - pydantic.warnings.PydanticDeprecatedSince212: Using `@model_validator` with mode='after' on a classmethod is deprecated. Instead, ...
ERROR tests/unit/io/test_iceberg.py - pydantic.warnings.PydanticDeprecatedSince212: Using `@model_validator` with mode='after' on a classmethod is deprecated. Instead, ...
ERROR tests/unit/io/test_iceberg.py - pydantic.warnings.PydanticDeprecatedSince212: Using `@model_validator` with mode='after' on a classmethod is deprecated. Instead, ...
ERROR tests/unit/io/test_iceberg.py - pydantic.warnings.PydanticDeprecatedSince212: Using `@model_validator` with mode='after' on a classmethod is deprecated. Instead, ...
ERROR tests/unit/io/test_iceberg.py - pydantic.warnings.PydanticDeprecatedSince212: Using `@model_validator` with mode='after' on a classmethod is deprecated. Instead, ...
ERROR tests/unit/io/test_iceberg.py - pydantic.warnings.PydanticDeprecatedSince212: Using `@model_validator` with mode='after' on a classmethod is deprecated. Instead, ...
ERROR tests/unit/io/test_iceberg.py - pydantic.warnings.PydanticDeprecatedSince212: Using `@model_validator` with mode='after' on a classmethod is deprecated. Instead, ...
ERROR tests/unit/io/test_iceberg.py - pydantic.warnings.PydanticDeprecatedSince212: Using `@model_validator` with mode='after' on a classmethod is deprecated. Instead, ...
ERROR tests/unit/io/test_iceberg.py - pydantic.warnings.PydanticDeprecatedSince212: Using `@model_validator` with mode='after' on a classmethod is deprecated. Instead, ...
======================================= 14340 passed, 9 skipped, 9 xfailed, 10 errors in 32.87s =======================================reproduced issue on main branch and most recent release py-1.34.0
Log output
Issue description
pyiceberg is breaking polars unit test due to most recent pydantic release.
Expected behavior
pass local unit test
Installed versions
--------Version info---------
Polars: 1.34.0
Index type: UInt32
Platform: macOS-15.6.1-arm64-arm-64bit-Mach-O
Python: 3.13.2 (main, Feb 4 2025, 14:51:09) [Clang 16.0.0 (clang-1600.0.26.6)]
Runtime: unknown
----Optional dependencies----
Azure CLI <not installed>
adbc_driver_manager 1.8.0
altair 5.5.0
azure.identity 1.25.1
boto3 1.40.49
cloudpickle 3.1.1
connectorx 0.4.4
deltalake 1.2.0
fastexcel 0.16.0
fsspec 2025.9.0
gevent 25.9.1
google.auth 2.41.1
great_tables 0.19.0
matplotlib 3.10.7
numpy 2.3.4
openpyxl 3.1.5
pandas 2.3.3
...
sqlalchemy 2.0.44
torch <not installed>
xlsx2csv 0.8.4
xlsxwriter 3.2.5