+.PHONY: release
+release: tests flake8 docs distr
+
+.PHONY: distr
+distr:
+ ./mk-distr
+
+.PHONY: flake8
+flake8:
+ flake8
+
+.PHONY: docs
+docs: html
+
+.PHONY: html
+html:
+ $(MAKE) -C docs html
+ $(MAKE) -C docs-ru html
+
+.PHONY: test
+test:
+ $(MAKE) -C tests
+
+.PHONY: tests
+tests: test
+
+.PHONY: clean
+clean:
+ find . -name '*.py[co]' -type f -delete