It Seems There's a Compatibility Issue with Pydantic v2.0: FieldInfo object has no attribute 'required'

sharrajesh commented 2 months ago

Checked other resources

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

Example Code

my code is proprietary

Error Message and Stack Trace (if applicable)

Traceback (most recent call last): File "/home/username/.pycharm_helpers/pydev/pydevd.py", line 1551, in _exec pydev_imports.execfile(file, globals, locals) # execute the script File "/home/username/.pycharm_helpers/pydev/_pydev_imps/_pydev_execfile.py", line 18, in execfile exec(compile(contents+"\n", file, 'exec'), glob, loc) File "/home/username/code/ai/myproject/examples/llm_rule_translation_and_creation.py", line 20, in sigma_agent_executor = create_sigma_agent(sigma_vectorstore=sigma_llm.sigmadb) File "/home/username/code/ai/myproject/myproject/llm/toolkits/base.py", line 63, in create_sigma_agent llm_with_tools = agent_llm.bind(functions=[convert_to_openai_function(t) for t in tools]) File "/home/username/code/ai/myproject/myproject/llm/toolkits/base.py", line 63, in llm_with_tools = agent_llm.bind(functions=[convert_to_openai_function(t) for t in tools]) File "/home/username/.cache/pypoetry/virtualenvs/myproject-ItWCGl7B-py3.10/lib/python3.10/site-packages/langchain_core/utils/function_calling.py", line 278, in convert_to_openai_function return cast(Dict, format_tool_to_openai_function(function)) File "/home/username/.cache/pypoetry/virtualenvs/myproject-ItWCGl7B-py3.10/lib/python3.10/site-packages/langchain_core/_api/deprecation.py", line 168, in warning_emitting_wrapper return wrapped(*args, **kwargs) File "/home/username/.cache/pypoetry/virtualenvs/myproject-ItWCGl7B-py3.10/lib/python3.10/site-packages/langchain_core/utils/function_calling.py", line 199, in format_tool_to_openai_function if tool.tool_call_schema: File "/home/username/.cache/pypoetry/virtualenvs/myproject-ItWCGl7B-py3.10/lib/python3.10/site-packages/langchain_core/tools.py", line 428, in tool_call_schema return _create_subset_model( File "/home/username/.cache/pypoetry/virtualenvs/myproject-ItWCGl7B-py3.10/lib/python3.10/site-packages/langchain_core/tools.py", line 129, in _create_subset_model if field.required and not field.allow_none AttributeError: 'FieldInfo' object has no attribute 'required'. Did you mean: 'is_required'?

Description

I started seeing an AttributeError after upgrading to Pydantic v2.0 while using the latest version of LangChain. The error message is:

csharp Copy code AttributeError: 'FieldInfo' object has no attribute 'required'. Did you mean: 'is_required'? This issue seems related to the recent Pydantic upgrade. See the trace for more information. Downgrading Pydantic resolves the issue.

System Info

LangChain Version: Latest Pydantic Version: 2.20.1 Python Version: 3.10.12 Operating System: Windows with WSL Ubuntu poetry

yeaung276 commented 2 months ago

I got it working by using "langchain-core==0.2.20"

sharrajesh commented 2 months ago

thank you; your suggestion works; it seems something broke in langchain-core 0.2.21

eyurtsev commented 2 months ago

@sharrajesh could you include a minimal reproducible example. We won't be able to help otherwise. You don't need to include any proprietary code.

eyurtsev commented 2 months ago

Also please include the output of: python -m langchain_core.sys_info

eyurtsev commented 2 months ago

This issue will likely have been fixed in the next release of langchain-core (can't tell for sure since there's no reproduction code)

sharrajesh commented 2 months ago

I will give a try and update here.

sharrajesh commented 2 months ago

Confirmed problem has been fixed by latest langchain-core. Thank you langchain team!

langchain-ai / langchain