_stringify does not support non-english

[aiml-gmlee]

Checked other resources

• I added a very descriptive title to this issue.
• I searched the LangChain documentation with the integrated search.
• I used the GitHub search to find a similar question and didn't find it.
• I am sure that this is a bug in LangChain rather than my code.
• The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package).

Example Code

langchain_core.tools.base

def _stringify(content: Any) -> str:
    try:
        return json.dumps(content)
    except Exception:
        return str(content)

this is not supports non-english

Error Message and Stack Trace (if applicable)

No response

Description

json.dumps not supports non-english

same issue on langgraph and solved with json.dumps(content, ensure_ascii=False)

• ToolNode output is broken for non-english langgraph#1504

System Info

System Information

OS: Darwin
OS Version: Darwin Kernel Version 23.5.0: Wed May 1 20:12:58 PDT 2024; root:xnu-10063.121.3~5/RELEASE_ARM64_T6000
Python Version: 3.10.14 | packaged by conda-forge | (main, Mar 20 2024, 12:51:49) [Clang 16.0.6 ]

Package Information

langchain_core: 0.2.39
langchain: 0.2.16
langchain_community: 0.2.10
langsmith: 0.1.117
langchain_experimental: 0.0.63
langchain_openai: 0.1.23
langchain_text_splitters: 0.2.2
langgraph: 0.2.19

Optional packages not installed

langserve

Other Dependencies

aiohttp: 3.9.5
async-timeout: 4.0.3
dataclasses-json: 0.6.7
httpx: 0.27.0
jsonpatch: 1.33
langgraph-checkpoint: 1.0.9
numpy: 1.26.4
openai: 1.44.1
orjson: 3.10.6
packaging: 24.1
pydantic: 2.8.2
PyYAML: 6.0.1
requests: 2.32.3
SQLAlchemy: 2.0.31
tenacity: 8.5.0
tiktoken: 0.7.0
typing-extensions: 4.12.2

[aiml-gmlee]

It solved