Mason Daugherty a5a8f8db78 fix(core): add messages to bare raise ValueError calls (#38158) ...

Closes #35727

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Several internal code paths raised a bare `ValueError` with no message,
so when one of these conditions tripped, users saw a traceback with no
explanation of what actually went wrong.

This adds descriptive messages to each of those `raise ValueError`
calls:

- `FewShotPromptWithTemplates._get_examples` / `_aget_examples` — when
neither `examples` nor `example_selector` is set.
- Prompt `loading` — when a referenced template file uses an unsupported
(non-`.txt`) format.
- The LangSmith document loader — when both `client` and `client_kwargs`
are supplied.
- The Anthropic file-search middleware brace expansion — for unbalanced
or empty brace patterns.

Made by [Open SWE](https://openswe.vercel.app)

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Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>

2026-06-22 23:02:05 -04:00

..

benchmarks

perf(core): memoize BaseTool.tool_call_schema subset model and cache model_json_schema (#38073)

2026-06-17 17:17:14 -04:00

integration_tests

core: Add ruff rules for PIE (#26939)

2024-09-27 12:08:35 -04:00

unit_tests

fix(core): add messages to bare raise ValueError calls (#38158)

2026-06-22 23:02:05 -04:00

__init__.py

Separate out langchain_core package (#13577)

2023-11-20 13:09:30 -08:00