$ pytest --cov harvester --cov-report term-missing ImportError while loading conftest '/builds/vs/harvester/tests/conftest.py'. tests/conftest.py:3: in <module> from harvester.query import Query /usr/local/lib/python3.8/site-packages/harvester-2.0.0-py3.8.egg/harvester/query.py:4: in <module> from dateutil.parser import isoparse E ModuleNotFoundError: No module named 'dateutil' Cleaning up file based variables ERROR: Job failed: exit code 1