diff --git a/make/py-ns-dir.mk b/make/py-ns-dir.mk
new file mode 100644
index 00000000..1c69d559
--- /dev/null
+++ b/make/py-ns-dir.mk
@@ -0,0 +1,7 @@
+include $(JWBDIR)/make/dirs.mk
+
+all:
+
+clean: py.clean
+py.clean:
+	rm -rf __pycache__