diff --git a/tools/Makefile b/tools/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..ef721c2b8532c4ddf921d1cf371732f1c8472f71
--- /dev/null
+++ b/tools/Makefile
@@ -0,0 +1,13 @@
+PYTHON:= python3.7
+.PHONY: all clean
+
+all: virtualenv
+
+virtualenv:
+	test -d venv || virtualenv -p $(PYTHON) venv
+	touch venv/bin/activate
+
+clean:
+	rm -fr venv
+	find -iname "*.pyc" -delete
+