tortoise-pathway 0.2.0

A schema migration tool for Tortoise ORM

Tortoise Pathway

⚠️ This project is in VERY early development and not yet ready for production use. Most things are broken and they will break again, APIs will change.

⚠️ Most of the code is written with Claude, there are issues with code style that are common for AI generated code.

🤓 Code contributions and assistance with testing are welcome and appreciated!

Tortoise Pathway is a migration system for Tortoise ORM, inspired by Django's migration approach.

See CHANGELOG.md for the latest changes.

Features

• Generate schema migrations from Tortoise models
• Apply and revert migrations
• No need for a database connection to generate migrations
• If you have used Django migrations, you will feel at home

Installation

You can install the package using pip:

pip install tortoise-pathway

Or if you prefer using uv:

uv add tortoise-pathway

Development

Running tests:

uv run pytest

Usage

Configuration

Create a configuration module with a TORTOISE_ORM dictionary. For example, in config.py:

TORTOISE_ORM = {
    "connections": {
        "default": {
            "engine": "tortoise.backends.sqlite",
            "credentials": {
                "file_path": "db.sqlite3",
            },
        },
    },
    "apps": {
        "models": {
            "models": ["myapp.models"],
            "default_connection": "default",
        },
    },
}

Defining Models

Define your Tortoise ORM models as usual:

# myapp/models.py
from tortoise import fields, models

class User(models.Model):
    id = fields.IntField(primary_key=True)
    name = fields.CharField(max_length=255)
    email = fields.CharField(max_length=255, unique=True)
    created_at = fields.DatetimeField(auto_now_add=True)

Working with Migrations

Generate migrations automatically based on model changes:

python -m tortoise_pathway --config myapp.config.TORTOISE_ORM make

or generate an empty migration with a name:

python -m tortoise_pathway --config myapp.config.TORTOISE_ORM make --empty --name "add_email_field"

Apply migrations:

python -m tortoise_pathway --config myapp.config.TORTOISE_ORM migrate

Revert a migration:

python -m tortoise_pathway --config myapp.config.TORTOISE_ORM rollback --migration <migration_name>