KuzuGraph not working

[decentropy]

System Info

Name: kuzu
Version: 0.0.10 (latest)

Name: langchain
Version: 0.0.311

Who can help?

No response

Information

• The official example notebooks/scripts
• My own modified scripts

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Reproduction

I am using the example from langchain documentation:
https://python.langchain.com/docs/use_cases/graph/graph_kuzu_qa

This line fails:
graph = KuzuGraph(db)

F```
ile ~/.local/lib/python3.10/site-packages/langchain/graphs/kuzu_graph.py:71, in KuzuGraph.refresh_schema(self)
69 for table in rel_tables:
70 current_table_schema = {"properties": [], "label": table["name"]}
---> 71 properties_text = self.conn._connection.get_rel_property_names(
72 table["name"]
73 ).split("\n")
74 for i, line in enumerate(properties_text):
75 # The first 3 lines defines src, dst and name, so we skip them
76 if i < 3:

AttributeError: 'kuzu._kuzu.Connection' object has no attribute 'get_rel_property_names'

### Expected behavior

should work like example

[dosubot]

🤖

Hello,

Thank you for reaching out and providing detailed information about the issue you're facing. The error you're encountering, 'kuzu._kuzu.Connection' object has no attribute 'get_rel_property_names', is due to the fact that the 'get_rel_property_names' method does not exist in the 'kuzu._kuzu.Connection' class.

This method is called in the 'refresh_schema' method of the 'KuzuGraph' class in LangChain:

properties_text = self.conn._connection.get_rel_property_names(
    table["name"]
).split("\n")

However, as per the error message, there is no such method in the 'kuzu._kuzu.Connection' class, hence the AttributeError.

To resolve this issue, you need to check the Kuzu documentation or source code to find the correct method for retrieving relationship property names. If you're unsure, you may need to reach out to the maintainers of the Kuzu library for further assistance.

Regarding your question about the changes made to the LangChain codebase between version 0.0.311 and the latest version 0.0.315, I'm afraid I don't have that information at the moment. However, you can check the release notes or the commit history in the LangChain repository for this information.

I hope this helps. If you have any other questions or need further clarification, please don't hesitate to ask.

Best regards,
Dosu

Sources

• libs/langchain/langchain/graphs/kuzu_graph.py
• libs/langchain/tests/integration_tests/test_kuzu.py

---

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[yzhang1918]

The method "get_rel_property_names" has been removed since kuzu 0.0.10.

Check this PR: kuzudb/kuzu#2207

A temporary solution is to use kuzu==0.0.9

pip install kuzu==0.0.9

[dosubot]

Hi, @decentropy,

I'm helping the LangChain team manage their backlog and am marking this issue as stale. From what I understand, the issue you reported regarding the KuzuGraph not working as expected and throwing an AttributeError related to the 'get_rel_property_names' method has been resolved. The 'get_rel_property_names' method has been removed since kuzu 0.0.10, and users are advised to use kuzu==0.0.9 as a temporary solution.

Could you please confirm if this issue is still relevant to the latest version of the LangChain repository? If it is, please let the LangChain team know by commenting on the issue. Otherwise, feel free to close the issue yourself, or the issue will be automatically closed in 7 days.

Thank you for your understanding and cooperation. If you have any further questions or concerns, feel free to reach out.

[karbasia]

I've created a PR to resolve this issue: #16885

[baskaryan]

Should be fixed in #16885