$ make requirements$ alembic init alembic$ alembic current$ alembic history$ alembic stamp head$ alembic upgrade head
$ alembic upgrade +2
$ alembic upgrade ae10+2
$ alembic upgrade ae10+2 --sql > apply-later.sql$ alembic downgrade base
$ alembic downgrade -1$ alembic revision --autogenerate -m "Added account table"$ make pep8$ make test$ make testx$ make test.collect$ make coverage$ make coverage.html