UnboundLocalError: local variable 'handshake' referenced before assignment

[pwrstar]

Neo4j Version: 5.28.0
Operating System: Amazon Linux
Installation Method: Pip
API: Python

Steps to reproduce

1. pip install graphdatascience==1.12, which will install "neo4j==5.28.0" as the req indicate Requires-Dist: neo4j<6.0,>=4.4.12. try to connect to neo4j using the GraphDataScience
2. from graphdatascience import GraphDataScience
3. connect to Neo4j using: gds = GraphDataScience(bolt_url, auth=(neo4j_user, neo4j_password), aura_ds=False)

Expected behavior

• The authentication should work and create gds instance.

Actual behavior

• It throws error graphdatascience.error.unable_to_connect.UnableToConnectError: local variable 'handshake' referenced before assignment

neo4j-5.27 works

• Now, pip install neo4j=5.27 and then repeat the steps again, the connection works with no issues.

Issue:

The handshake variable seems be introduced in neo4j=5.28 , which is breaking the flow.

[manojks1999]

@pwrstar can i work on this?

[FlorentinD]

@pwrstar checking the changelog of the python driver at https://github.com/neo4j/neo4j-python-driver/wiki/5.x-changelog#5280-lts.

Could you try again using the latest neo4j driver? (5.28.1)

[robsdedude]

Thanks for the report. I'm pretty sure this is exactly the bug that has been fixed in 5.28.1. I'm really sorry for the disruption. I will close the issue now as I believe it has already been fixed. If not, please feel free to keep commenting or reopen.