/usr/lib/python3/dist-packages/setuptools/tests/ is in python3-setuptools 5.5.1-1.
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..
/usr/lib/python3/dist-packages/setuptools/tests/__init__.py
/usr/lib/python3/dist-packages/setuptools/tests/environment.py
/usr/lib/python3/dist-packages/setuptools/tests/py26compat.py
/usr/lib/python3/dist-packages/setuptools/tests/script-with-bom.py
/usr/lib/python3/dist-packages/setuptools/tests/server.py
/usr/lib/python3/dist-packages/setuptools/tests/test_bdist_egg.py
/usr/lib/python3/dist-packages/setuptools/tests/test_build_ext.py
/usr/lib/python3/dist-packages/setuptools/tests/test_develop.py
/usr/lib/python3/dist-packages/setuptools/tests/test_dist_info.py
/usr/lib/python3/dist-packages/setuptools/tests/test_easy_install.py
/usr/lib/python3/dist-packages/setuptools/tests/test_egg_info.py
/usr/lib/python3/dist-packages/setuptools/tests/test_find_packages.py
/usr/lib/python3/dist-packages/setuptools/tests/test_integration.py
/usr/lib/python3/dist-packages/setuptools/tests/test_markerlib.py
/usr/lib/python3/dist-packages/setuptools/tests/test_packageindex.py
/usr/lib/python3/dist-packages/setuptools/tests/test_resources.py
/usr/lib/python3/dist-packages/setuptools/tests/test_sandbox.py
/usr/lib/python3/dist-packages/setuptools/tests/test_sdist.py
/usr/lib/python3/dist-packages/setuptools/tests/test_svn.py
/usr/lib/python3/dist-packages/setuptools/tests/test_test.py
/usr/lib/python3/dist-packages/setuptools/tests/test_upload_docs.py