Unable to Initialize the Ollama Functions Module Due to ImportError in Langchain Core Utils

[chakravarthik27]

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

from langchain_experimental.llms.ollama_functions import OllamaFunctions

Error Message and Stack Trace (if applicable)

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\KALYAN\AppData\Local\Programs\Python\Python310\lib\site-packages\langchain_experimental\llms\ollama_functions.py", line 44, in <module>
    from langchain_core.utils.pydantic import is_basemodel_instance, is_basemodel_subclass
ImportError: cannot import name 'is_basemodel_instance' from 'langchain_core.utils.pydantic' (C:\Users\<Profile>\AppData\Local\Programs\Python\Python310\lib\site-packages\langchain_core\utils\pydantic.py)

Description

I'm trying to use langchain for tooling in Ollama, but I'm encountering an ImportError when attempting to initialize the Ollama Functions module. The error states that is_basemodel_instance cannot be imported from langchain_core.utils.pydantic.

System Info

System Information

OS: Windows
OS Version: 10.0.22631
Python Version: 3.10.0 (tags/v3.10.0:b494f59, Oct 4 2021, 19:00:18) [MSC v.1929 64 bit (AMD64)]

Package Information

langchain_core: 0.2.11
langchain: 0.2.6
langchain_community: 0.2.6
langsmith: 0.1.83
langchain_experimental: 0.0.63
langchain_fireworks: 0.1.4
langchain_groq: 0.1.4
langchain_openai: 0.1.14
langchain_text_splitters: 0.2.2
langgraph: 0.1.5

Packages not installed (Not Necessarily a Problem)

The following packages were not found:

langserve

[wulifu2hao]

pip install -U langchain_core

Successfully installed langchain_core-0.2.23