Christophe Bornet e36e25fe2f feat(langchain): support PEP604 ( | union) in tool node error handlers (#32861) ...

This allows to use PEP604 syntax for `ToolNode` error handlers
```python
def error_handler(e: ValueError | ToolException) -> str:
    return "error"

ToolNode(my_tool, handle_tool_errors=error_handler).invoke(...)
```
Without this change, this fails with `AttributeError: 'types.UnionType'
object has no attribute '__mro__'`

2025-09-09 10:11:12 -04:00

..

integration_tests

chore(langchain): add ruff rules D for langchain_v1 (#32808)

2025-09-03 15:26:17 -04:00

unit_tests

feat(langchain): support PEP604 ( | union) in tool node error handlers (#32861)

2025-09-09 10:11:12 -04:00

__init__.py

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