litequery 0.4.0

A handy way to interact with an SQLite database from Python

Litequery

Litequery is a minimalist library for interacting with SQLite in Python. It lets you define your queries once and call them as methods. No ORM bloat, just raw SQL power, with the flexibility to operate in both asynchronous and synchronous modes.

Why Litequery?

• Simplicity: Define SQL queries in .sql files. No complex ORM layers.
• Async first: Built for modern async Python, but also supports synchronous operations for traditional use cases.
• Flexible: Supports different SQL operations seamlessly.

Installation

pip install litequery

Getting Started

Define Your Queries

Create a queries.sql file. Name your queries using comments and write them in pure SQL.

-- name: get_all_users
SELECT * FROM users;

-- name: get_user_by_id^
SELECT * FROM users WHERE id = :id;

-- name: get_last_user_id$
SELECT MAX(id) FROM users;

-- name: insert_user<!
INSERT INTO users (name, email) VALUES (:name, :email);

-- name: delete_all_users!
DELETE FROM users;

Using Your Queries

Define your database and queries, and then call them as methods. Choose async or sync setup based on your needs. It's as straightforward as it sounds.

import litequery
import asyncio


async def main():
    lq = litequery.setup("database.db", "queries.sql", use_async=True)
    await lq.connect()

    user_id = await lq.insert_user(name="Alice", email="[e-mail]")
    print(user_id)

    users = await lq.get_all_users()
    print(users)

    user = await lq.get_user_by_id(id=user_id)
    print(user)

    rows_count = await lq.delete_all_users()

    await lq.disconnect()


asyncio.run(main())

Transaction Support

Litequery also supports transactions in both async and sync contexts, allowing you to execute multiple queries atomicaly.

import litequery
import asyncio


async def main():
    lq = litequery.setup("database.db", "queries.sql")
    await lq.connect()

    try:
        async with lq.transaction():
            await lq.insert_user(name="Charlie", email="[e-mail]")
            raise Exception("Force rollback")
            await lq.insert_user(name="Eve", email="[e-mail]")
    except Exception:
        print("Transaction failed")

    users = await lq.get_all_users()
    print(users)

    await lq.disconnect()


asyncio.run(main())

Wrapping Up

Litequery is all about simplicity and efficiency. Why wrestle with bloated ORMs when you can have raw SQL power? If you think there's a better way or have suggestions, let's hear them. Happy querying!