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Database Migration Engine

Project description Maintainability

Migrant is a database schema version management framework

Features include:

  • backend agnostic core

  • explicit migration script ordering

  • support for downgrading

  • support for out-of-order migrations

  • support for migrating multiple homogenuous databases


To set up development environment, use pipenv:

pipenv install --dev

To run tests, use pytest:


To run tests under all supported environments, use tox:

tox --skip-missing-interpreters

To check for typing errors, use mypy:

mypy src


1.5.0 (2023-01-24)

  • License under MIT

1.4.0 (2020-04-28)

  • Ability to skip database from migration, when it not available.

  • API change: to support parallel processing Backend class grew connection management methods, that needs to be implemented in plugins.

  • Type annotations added

  • Support migration of multiple databases in parallel (see –parallel command line argument for command)

  • Add support for Python-3.8

  • Drop support for Python-2.7

  • Modernize development environment with pipenv

1.3.1 (2019-03-01)

  • Updated the script template to make it lint friendly.

1.3.0 (2018-07-11)

  • Suppport for Python 3.6 and 3.7. Dropped Python 3.5.

  • Fixed compatibility to not use future, since it imported ConfigParser as configparser in Python 2.7. Instead the official configparser backport is used.

1.2.1 (2018-02-06)

  • Bugfix: proper error when cmd argument missing in Python 3

1.2.0 (2018-02-06)

  • Python 3 compatibility.

1.1.1 (2017-05-23)

  • Update README.rst badges.

1.1.0 (2017-05-23)

  • First public release using all public tools.

1.0.0 (2017-05-16)

  • First packaged version.

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