jetbase 0.13.0

Jetbase is a Python database migration tool

Welcome to Jetbase 🚀

Jetbase is a simple, lightweight database migration tool for Python projects.

Jetbase helps you manage database migrations in a simple, version-controlled way. Whether you're adding a new table, modifying columns, or need to undo a change, Jetbase makes it super easy!

Key Features ✨

• 📦 Simple Setup — Get started with just one command
• ⬆️ Easy Upgrades — Apply pending migrations with confidence
• ⬇️ Safe Rollbacks — Made a mistake? No problem, roll it back!
• 📊 Clear Status — Always know which migrations have been applied and which are pending
• 🔒 Migration Locking — Prevents conflicts when multiple processes try to migrate
• ✅ Checksum Validation — Detects if migration files have been modified
• 🔄 Repeatable Migrations — Support for migrations that run on every upgrade

📚 Full Documentation

Quick Start 🏃‍♂️

Installation

Using pip:

pip install jetbase

Using uv:

uv add jetbase

Note for Snowflake Users:
To use Jetbase with Snowflake, install the Snowflake extras:

pip install "jetbase[snowflake]"

Initialize Your Project

jetbase init
cd jetbase

This creates a jetbase/ directory with:

• A migrations/ folder for your SQL files
• An env.py configuration file

Configure Your Database

Edit jetbase/env.py with your database connection string (currently support for postgres, sqlite, and snowflake):

PostgreSQL example:

sqlalchemy_url = "postgresql+psycopg2://user:password@localhost:5432/mydb"

SQLite example:

sqlalchemy_url = "sqlite:///mydb.db"

Create Your First Migration

jetbase new "create users table"

This creates a new SQL file like V20251225.120000__create_users_and_items_tables.sql.

Tip:
You can also create migrations manually by adding SQL files in the jetbase/migrations directory, using the V<version>__<description>.sql naming convention (e.g., V1__add_users_table.sql, V2.4__add_users_table.sql).

Write Your Migration

Open the newly created file and add your SQL:

-- upgrade
CREATE TABLE users (
    id SERIAL PRIMARY KEY,
    name VARCHAR(100) NOT NULL,
    email VARCHAR(255) UNIQUE NOT NULL
);

CREATE TABLE items (
    id SERIAL PRIMARY KEY,
    name VARCHAR(100) NOT NULL
);

-- rollback
DROP TABLE items;
DROP TABLE users;

Apply the Migration

jetbase upgrade

That's it! Your database is now up to date. 🎉

Note:
Jetbase uses SQLAlchemy under the hood to manage database connections.
For any database other than SQLite, you must install the appropriate Python database driver.
For example, to use Jetbase with PostgreSQL:

pip install psycopg2

You can also use another compatible driver if you prefer (such as asyncpg, pg8000, etc.).

Supported Databases

Jetbase currently supports:

• ✅ PostgreSQL
• ✅ SQLite
• ✅ Snowflake

Need Help?

Open an issue on GitHub!