Clean state

classifier/tests/__init__.py

@@ -0,0 +1,11 @@
+from pathlib import Path
+import sys
+
+# Full suite
+# python -m unittest discover -s classifier/tests -p "test_*.py" -t classifier
+
+# Allow `from src...` imports when tests are run from repo root.
+ROOT = Path(__file__).resolve().parents[1]
+if str(ROOT) not in sys.path:
+    sys.path.insert(0, str(ROOT))
+