fix release test

Author: mr-c

Makefile

@@ -67,7 +67,7 @@ dev: install-dep
 dist: dist/${MODULE}-$(VERSION).tar.gz
 
 dist/${MODULE}-$(VERSION).tar.gz: $(SOURCES)
-	./setup.py sdist bdist_wheel
+	python setup.py sdist bdist_wheel
 
 ## docs	       : make the docs
 docs: FORCE
@@ -76,7 +76,7 @@ docs: FORCE
 ## clean       : clean up all temporary / machine-generated files
 clean: FORCE
 	rm -f ${MODILE}/*.pyc tests/*.pyc
-	./setup.py clean --all || true
+	python setup.py clean --all || true
 	rm -Rf .coverage
 	rm -f diff-cover.html
 
@@ -187,7 +187,7 @@ release-test: FORCE
 
 release: release-test
 	. testenv2/bin/activate && \
-		testenv2/src/${MODULE}/setup.py sdist bdist_wheel && \
+		python testenv2/src/${MODULE}/setup.py sdist bdist_wheel && \
 		pip install twine && \
 		twine upload testenv2/src/${MODULE}/dist/* && \
 		git tag ${VERSION} && git push --tags