/usr/lib/python3/dist-packages/celery/utils/ is in python3-celery 3.1.20-1.
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/usr/lib/python3/dist-packages/celery/utils/__init__.py
/usr/lib/python3/dist-packages/celery/utils/compat.py
/usr/lib/python3/dist-packages/celery/utils/debug.py
/usr/lib/python3/dist-packages/celery/utils/dispatch/
/usr/lib/python3/dist-packages/celery/utils/dispatch/__init__.py
/usr/lib/python3/dist-packages/celery/utils/dispatch/saferef.py
/usr/lib/python3/dist-packages/celery/utils/dispatch/signal.py
/usr/lib/python3/dist-packages/celery/utils/encoding.py
/usr/lib/python3/dist-packages/celery/utils/functional.py
/usr/lib/python3/dist-packages/celery/utils/imports.py
/usr/lib/python3/dist-packages/celery/utils/iso8601.py
/usr/lib/python3/dist-packages/celery/utils/log.py
/usr/lib/python3/dist-packages/celery/utils/mail.py
/usr/lib/python3/dist-packages/celery/utils/objects.py
/usr/lib/python3/dist-packages/celery/utils/serialization.py
/usr/lib/python3/dist-packages/celery/utils/sysinfo.py
/usr/lib/python3/dist-packages/celery/utils/term.py
/usr/lib/python3/dist-packages/celery/utils/text.py
/usr/lib/python3/dist-packages/celery/utils/threads.py
/usr/lib/python3/dist-packages/celery/utils/timer2.py
/usr/lib/python3/dist-packages/celery/utils/timeutils.py