The tests can be run this way: cd python3-flightgear python3 -m unittest If you want to be more specific: cd python3-flightgear python3 -m unittest flightgear.meta.tests.test_catalog python3 -m unittest flightgear.meta.tests.test_sgprops python3 -m unittest flightgear.meta.tests.test_catalog.UpdateCatalogTests python3 -m unittest flightgear.meta.tests.test_catalog.UpdateCatalogTests.test_scan_set etc.