I am installing airflow version 1.9.0 and getting the following error
Traceback (most recent call last):
....
bcpmrstbssapp1 airflow: from kombu.entity import Exchange, Queue
airflow: File "/opt/xxx/lib/airflow/kombu/entity.py", line 9, in <module>
airflow: from .serialization import prepare_accept_content
airflow: File "/opt/xxx/lib/airflow/kombu/serialization.py", line 456, in <module>
airflow: for ep, args in entrypoints('kombu.serializers'): # pragma: no cover
airflow: File "/opt/xxx/lib/airflow/kombu/utils/compat.py", line 89, in entrypoints
airflow: for ep in importlib_metadata.entry_points().get(namespace, [])
....
TypeError: can't intern subclass of string
I am using celery version 4.3 Should I select a specific version of kombu ?