So in Flask I have models.py which contains all of my model definitions. I'd like to separate this out into multiple model files under a models directory. I've given this a try by adding some model files such as models/user_model.py, models/booking_model.py etc. but alembic doesn't seem to detect the models in these files. In the standard alembic.ini with Flask I have: # A generic, single database configuration. [alembic] # template used to generate migration files # file_template = %%(rev)s_%%(slug)s # set to 'true' to run the environment during # the 'revision' command, regardless of autogenerate # revision_environment = false # Logging configuration [loggers] keys = root,sqlalchemy,alembic [handlers] keys = console [formatters] keys = generic [logger_root] level = WARN handlers = console qualname = [logger_sqlalchemy] level = WARN handlers = qualname = sqlalchemy.engine [logger_alembic] level = INFO handlers = qualname = alembic [handler_console] class = StreamHandler args = (sys.stderr,) level = NOTSET formatter = generic [formatter_generic] format = %(levelname)-5.5s [%(name)s] %(message)s datefmt = %H:%M:%S Do I need to add something here to get alembic to recognise the models? Continue reading...