Database migrations =================== This directory contains migrations for the database. These are implemented using `alembic`__, a lightweight database migration tool designed for usage with `SQLAlchemy`__. The best place to start understanding Alembic is with its own `tutorial`__. You can also play around with the :command:`alembic` command:: $ alembic --help .. __: https://alembic.sqlalchemy.org/en/latest/ .. __: https://www.sqlalchemy.org/ .. __: https://alembic.sqlalchemy.org/en/latest/tutorial.html