python - Clear postgresql and alembic and start over from scratch -

everything found via searching either wrong or incomplete in way. so, how i:

• delete in postgresql database
• delete alembic revisions
• make database 100% new

this works me:

1) access session, in same way did session.create_all, session.drop_all.

2) delete migration files generated alembic.

3) run session.create_all , initial migration generation again.