Neo4j can't connect

[dsubhasis]

Apache Airflow Provider(s)

neo4j

Versions of Apache Airflow Providers

apache-airflow-providers-celery==1.0.1
apache-airflow-providers-cncf-kubernetes==1.0.2
apache-airflow-providers-ftp==2.0.0
apache-airflow-providers-google==5.0.0
apache-airflow-providers-http==2.0.0
apache-airflow-providers-imap==2.0.0
apache-airflow-providers-jdbc==2.0.1
apache-airflow-providers-neo4j==2.0.0
apache-airflow-providers-postgres==2.0.0
apache-airflow-providers-sqlite==2.0.0

Apache Airflow version

2.1.3 (latest released)

Operating System

Ubuntu 18

Deployment

Other

Deployment details

Standard Linux installation with python 3.6

What happened

Neo4j access problem

Traceback (most recent call last):
File "/home/sudasgupta/tools/airflow/env/lib/python3.6/site-packages/airflow/models/taskinstance.py", line 1164, in _run_raw_task
self._prepare_and_execute_task_with_callbacks(context, task)
File "/home/sudasgupta/tools/airflow/env/lib/python3.6/site-packages/airflow/models/taskinstance.py", line 1282, in _prepare_and_execute_task_with_callbacks
result = self._execute_task(context, task_copy)
File "/home/sudasgupta/tools/airflow/env/lib/python3.6/site-packages/airflow/models/taskinstance.py", line 1312, in _execute_task
result = task_copy.execute(context=context)
File "/home/sudasgupta/tools/airflow/env/lib/python3.6/site-packages/airflow/providers/neo4j/operators/neo4j.py", line 60, in execute
self.hook.run(self.sql)
File "/home/sudasgupta/tools/airflow/env/lib/python3.6/site-packages/airflow/providers/neo4j/hooks/neo4j.py", line 113, in run
driver = self.get_conn()
File "/home/sudasgupta/tools/airflow/env/lib/python3.6/site-packages/airflow/providers/neo4j/hooks/neo4j.py", line 67, in get_conn
self.uri, auth=(self.connection.login, self.connection.password), encrypted=is_encrypted
File "/home/sudasgupta/tools/airflow/env/lib/python3.6/site-packages/neo4j/init.py", line 183, in driver
return cls.bolt_driver(parsed.netloc, auth=auth, **config)
File "/home/sudasgupta/tools/airflow/env/lib/python3.6/site-packages/neo4j/init.py", line 193, in bolt_driver
from neo4j._exceptions import BoltHandshakeError, BoltSecurityError
ModuleNotFoundError: No module named 'neo4j._exceptions'; 'neo4j' is not a package

What you expected to happen

Linux Driver problem

How to reproduce

Just by running the DAG

Anything else

No

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[boring-cyborg]

Thanks for opening your first issue here! Be sure to follow the issue template!

[mik-laj]

Do you use constraints files to install Airflow? http://airflow.apache.org/docs/apache-airflow/stable/installation.html#constraints-files

[dsubhasis]

My installation is as follows: CONSTRAINT_URL=" https://raw.githubusercontent.com/apache/airflow/constraints-2.1.3/constraints-3.6.txt " AIRFLOW_VERSION=2.1.3 pip install "apache-airflow[postgres,neo4j]==${AIRFLOW_VERSION}" --constraint "${CONSTRAINT_URL}"

…

On Sat, Sep 11, 2021 at 3:46 PM Kamil Breguła ***@***.***> wrote: Do you use constraints files to install Airflow? http://airflow.apache.org/docs/apache-airflow/stable/installation.html#constraints-files — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#18178 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABJY5RW7I2F5LXJVEXL2Y7TUBPL4BANCNFSM5D3M7UPA> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

[potiuk]

For me it looks like if you had a neo4j.py file in your PYTHONPATH (maybe your dag is named like that? Seems that Python interpreter sees neo4j as module rather than package.