jitokim:fix/pydantic-fieldinfo-serialization - Branch - langchain-ai/langchain - CodSpeed

Blog Docs Changelog

fix(core): Resolve 'FieldInfo is not JSON serializable' error in Pydantic v2

Comparing

jitokim:fix/pydantic-fieldinfo-serialization

(

bfedad2

) with

master

(

3dfea96

)

-3%

Untouched: 13

Skipped: 21

Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data. For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

No successful run was found on master ( 637bb1c) during the generation of this report, so 3dfea96 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report.

Benchmarks

Skipped (21)

Passed

test_import_time[LangChainTracer]

libs/core/tests/benchmarks/test_imports.py

0%

438.3 ms437.5 ms

test_async_callbacks_in_sync

libs/core/tests/benchmarks/test_async_callbacks.py

0%

24.4 ms24.5 ms

test_import_time[Document]

libs/core/tests/benchmarks/test_imports.py

-2%

186.9 ms190.3 ms

test_import_time[InMemoryRateLimiter]

libs/core/tests/benchmarks/test_imports.py

-3%

175.1 ms180.5 ms

test_import_time[HumanMessage]

libs/core/tests/benchmarks/test_imports.py

-3%

265.4 ms274.6 ms

test_import_time[RunnableLambda]

libs/core/tests/benchmarks/test_imports.py

-4%

477.3 ms495 ms

test_import_time[tool]

libs/core/tests/benchmarks/test_imports.py

-4%

520.6 ms540 ms

test_import_time[InMemoryVectorStore]

libs/core/tests/benchmarks/test_imports.py

-4%

605.4 ms630.1 ms

test_import_time[PydanticOutputParser]

libs/core/tests/benchmarks/test_imports.py

-4%

522.5 ms543.9 ms

test_import_time[CallbackManager]

libs/core/tests/benchmarks/test_imports.py

-4%

452.8 ms472 ms

test_import_time[Runnable]

libs/core/tests/benchmarks/test_imports.py

-5%

481.8 ms507.8 ms

test_import_time[BaseChatModel]

libs/core/tests/benchmarks/test_imports.py

-5%

524.1 ms554.3 ms

test_import_time[ChatPromptTemplate]

libs/core/tests/benchmarks/test_imports.py

-6%

590.7 ms630.5 ms

Commits

Click on a commit to change the comparison range

Base

master

3dfea96

-3.41%

fix(core): Prevent 'FieldInfo' is not JSON serializable error in Pydantic v2 Fixes TypeError when generating JSON schemas: "Object of type 'FieldInfo' is not JSON serializable". This occurs when model_json_schema() includes internal Pydantic metadata in the output. Solution: Add mode='serialization' parameter to model_json_schema() to ensure only JSON-serializable data structures are generated. Changes: - Modified _convert_pydantic_to_openai_function() to pass mode='serialization' - Added test_pydantic_fieldinfo_serialization() to verify correct behavior - Resolves nested Pydantic v2 model conversion issues Impact: - Fixes schema generation for nested Pydantic v2 models - No breaking changes (Pydantic v1 code path unchanged) - Previously failing test_convert_to_openai_function_nested_v2 now passes Signed-off-by: jitokim <pigberger70@gmail.com>

bfedad2

9 hours ago

by jitokim

© 2025 CodSpeed Technology

Home Terms Privacy Docs