amoghrajesh opened a new pull request, #56264:
URL: https://github.com/apache/airflow/pull/56264
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Along similar vein as https://github.com/apache/airflow/pull/56253
Latest issue:
```
NameError: Could not de-stringify annotation 'datetime | None'
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/usr/python/bin/airflow", line 4, in <module>
from airflow.__main__ import main
File "/opt/airflow/airflow-core/src/airflow/__main__.py", line 37, in
<module>
from airflow.cli import cli_parser
File "/opt/airflow/airflow-core/src/airflow/cli/cli_parser.py", line 40,
in <module>
from airflow.cli.cli_config import (
...<5 lines>...
)
File "/opt/airflow/airflow-core/src/airflow/cli/cli_config.py", line 36,
in <module>
from airflow.utils.cli import ColorMode
File "/opt/airflow/airflow-core/src/airflow/utils/cli.py", line 39, in
<module>
from airflow.dag_processing.dagbag import DagBag
File "/opt/airflow/airflow-core/src/airflow/dag_processing/dagbag.py",
line 52, in <module>
from airflow.serialization.serialized_objects import
LazyDeserializedDAG
File
"/opt/airflow/airflow-core/src/airflow/serialization/serialized_objects.py",
line 69, in <module>
from airflow.models.dag import DagModel
File "/opt/airflow/airflow-core/src/airflow/models/dag.py", line 55, in
<module>
from airflow.models.dagrun import DagRun
File "/opt/airflow/airflow-core/src/airflow/models/dagrun.py", line 64,
in <module>
from airflow.models.backfill import Backfill
File "/opt/airflow/airflow-core/src/airflow/models/backfill.py", line
114, in <module>
class Backfill(Base):
...<39 lines>...
return f"Backfill({self.dag_id=}, {self.from_date=},
{self.to_date=})"
File
"/usr/python/lib/python3.13/site-packages/sqlalchemy/orm/decl_api.py", line
198, in __init__
_as_declarative(reg, cls, dict_)
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File
"/usr/python/lib/python3.13/site-packages/sqlalchemy/orm/decl_base.py", line
245, in _as_declarative
return _MapperConfig.setup_mapping(registry, cls, dict_, None, {})
~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/usr/python/lib/python3.13/site-packages/sqlalchemy/orm/decl_base.py", line
326, in setup_mapping
return _ClassScanMapperConfig(
registry, cls_, dict_, table, mapper_kw
)
File
"/usr/python/lib/python3.13/site-packages/sqlalchemy/orm/decl_base.py", line
573, in __init__
self._extract_mappable_attributes()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File
"/usr/python/lib/python3.13/site-packages/sqlalchemy/orm/decl_base.py", line
1579, in _extract_mappable_attributes
raise orm_exc.MappedAnnotationError(
...<4 lines>...
) from ne
sqlalchemy.orm.exc.MappedAnnotationError: Could not resolve all types
within mapped annotation: "Mapped[datetime | None]". Ensure all types are
written correctly and are imported within the module in use.
Error: check_environment returned 1. Exiting.
```
Example:
https://github.com/apache/airflow/actions/runs/18135253335/job/51613587395
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---
**^ Add meaningful description above**
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for more information.
In case of fundamental code changes, an Airflow Improvement Proposal
([AIP](https://cwiki.apache.org/confluence/display/AIRFLOW/Airflow+Improvement+Proposals))
is needed.
In case of a new dependency, check compliance with the [ASF 3rd Party
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In case of backwards incompatible changes please leave a note in a
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