Python 3.9 removed importing ABC from collections module directly in https://github.com/python/cpython/pull/10596. This was deprecated since Python 3.4. I noticed these deprecation warnings in Travis CI for celery : https://travis-ci.org/celery/celery/jobs/632293936#L3181-L3195
Python 3.9 removed importing ABC from collections module directly in python/cpython#10596. This was deprecated since Python 3.4.
I noticed these deprecation warnings in Travis CI for celery : https://travis-ci.org/celery/celery/jobs/632293936#L3181-L3195