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A tiny SQLite ORM for Python.

Project description

dorm

Build Status

A small SQLite ORM for Python 3. You probably shouldn't use this, but if you want to anyway, pip install dorm and look at the tests for how to do so.

Migrations

Dorm has the most basic migration support imaginable:

# Generates a schema migration if it detects any changes.
python -m dorm --db=books.db --models=project.models --migrations=project.migrations generate

# Migrates to the latest migration (sorted by filename in the --migrations module).
python -m dorm --db=books.db --models=project.models --migrations=project.migrations migrate

Existing migrations are run automatically when calling dorm.setup with the migrations argument set. This is to ensure a good first-run experience and automatic upgrades for end users. If migrations is not set, any detected schema changes will be applied automatically to the database.

Asynchronous Tables

Dorm can be used with asyncio by simply subclassing AsyncTable instead of Table. The insert class method, and save and refresh instance methods become coroutines in that case. Also, the query class method will return an AsyncQuery instance, with coroutines for count, values, get, update, and iteration via __aiter__ (i.e. async for obj in MyTable.query()).

Migrations and introspection still happen synchronously, since they tend not to happen during times where they would benefit from being asyncronous.

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