diff --git a/implementations/python/Makefile b/implementations/python/Makefile
index cf6523a..f0d4c6d 100644
--- a/implementations/python/Makefile
+++ b/implementations/python/Makefile
@@ -6,3 +6,9 @@ coverage:
 	python2-coverage run --branch -m unittest test_preserves
 	python3-coverage run --branch -m unittest test_preserves
 	python3-coverage html
+
+clean:
+	rm -rf htmlcov
+	rm -rf __pycache__
+	rm -f *.pyc
+	rm -f .coverage