Pendulum not importing correctly with certain lib

[teraearlywine]

Apache Airflow version

2.8.0

If "Other Airflow 2 version" selected, which one?

No response

What happened?

When importing airflow, breaking change with pendulum 3.0. Fixed the issue by from pendulum import tz etc..
pendulum 3.0 was released last month

The tz argument is keyword-only, unlike in version 1.x
https://pendulum.eustace.io/docs/

What you think should happen instead?

from pendulum import tz

How to reproduce

install airflow locally and try running script with date used

from airflow import DAG 
schedule = "@once"

...
dag = DAG(
    dag_id=dag_id,
    default_args=default_args,
    schedule_interval=schedule,
    catchup=False,
)

Operating System

macOS

Versions of Apache Airflow Providers

No response

Deployment

Docker-Compose

Deployment details

No response

Anything else?

No response

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! If you are willing to raise PR to address this issue please do so, no need to wait for approval.

[potiuk]

You should use constraints to install airflow https://airflow.apache.org/docs/apache-airflow/stable/installation/installing-from-pypi.html - it is specifically designed to prevent people instaliing Airflow from experiencing such problems.

That's why Airflow 2.8.0 has Pendulum <3 and I am quite surprised that you were able to install Airlfow 2.8.0 and Pendulum 3 together. This is what you find in Airflow 2.8.0 package metadata:

Requires-Dist: pendulum (<3.0,>=2.0)

You must have done something completely forbidden even if you used constraints.

And yes we know very well that Pendulum 3 is not compatible with Airflow - but it has more breaking changes that you found.

And if you'd search for Pendulum you'd find out that this PR #36281 adds support for Pendulum 3.

For the future I suggest you use search functionality first - that will save you time for reporting issues and maintainers for having to close them.

[potiuk]

BTW. We plan to cherry-pick it for 2.8.1 so likely 2.8.1 will be Pendulum-3 compatible