Use full path to tox

Makefile

@@ -8,7 +8,7 @@ run: env
 
 .PHONY: test
 test: env
-	tox
+	./env/bin/tox
 
 .PHONY: build
 build: test
@@ -26,17 +26,19 @@ upload-test: env
 .PHONY: clean
 clean:
 	rm -fr ./build ./minitor.egg-info ./htmlcov ./.coverage ./.pytest_cache ./.tox
+	find . -name '*.pyc' -delete
+	find . -name '__pycache__' -delete
 
 .PHONY: dist-clean
 dist-clean: clean
-	rm -fr ./dist
+	rm -fr ./dist ./env
 
 .PHONY: install-hooks
 install-hooks:
-	tox -e pre-commit -- install -f --install-hooks
+	./env/bin/tox -e pre-commit -- install -f --install-hooks
 
 .coverage:
-	tox
+	./env/bin/tox
 
 htmlcov/index.html: .coverage
 	./env/bin/coverage html