Issues with dependency pinning between langchain-ollama and nx-arangodb[llm]

[colltoaction]

Hi, I'm working on my project for the Hackathon 🎉. I'm having issues with dependency pinning.

When I try to install langchain-ollama after nx-arangodb[llm] I get:

$ pip install langchain-ollama
...
This behaviour is the source of the following dependency conflicts. langchain-community 0.2.19 requires langchain-core<0.3.0,>=0.2.43, but you have langchain-core 0.3.35 which is incompatible. langchain 0.2.17 requires langchain-core<0.3.0,>=0.2.43, but you have langchain-core 0.3.35 which is incompatible. langchain-openai 0.1.25 requires langchain-core<0.3.0,>=0.2.40, but you have langchain-core 0.3.35 which is incompatible. langchain-text-splitters 0.2.4 requires langchain-core<0.3.0,>=0.2.38, but you have langchain-core 0.3.35 which is incompatible.

Thanks!

[aMahanna]

Hey @colltoaction! If you plan on using langchain-ollama, I would recommend not installing the packages listed in nx-arangodb[llm], as our Graph.chat() function was added as an experimental function to work with graphs.

We have a fork of LangChain that we are working on to introduce new changes here: arangoml/langchain#1

In the meantime, I would suggest the following:

• Uninstall packages from nx-arangodb[llm]
• Install langchain-ollama
• Use the ArangoGraphQAChain object directly from langchain instead of Graph.chat()
  • note: this will also allow you to set the allow_dangerous_requests=True parameter