How to delete a table in SQLAlchemy?

Alternative to calling cls.__table__.drop(your_engine), you can try this:

Base.metadata.drop_all(bind=your_engine, tables=[User.__table__])

This method as well as the create_all() method accept an optional argument tables, which takes an iterator of sqlalchemy.sql.schema.Table instances.

You can control which tables are to be created or dropped in this way.

Just call drop() against the table object. From the docs:

Issue a DROP statement for this Table, using the given Connectable for connectivity.

In your case it should be:

User.__table__.drop()

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If you get an exception like:

sqlalchemy.exc.UnboundExecutionError: Table object 'my_users' is not bound to an Engine or Connection. Execution can not proceed without a database to execute against

You need to pass the engine:

User.__table__.drop(engine)