Front Matter

Information about the Alembic project.

Project Homepage

Alembic is hosted on Bitbucket - the lead project page is at Source code is tracked here using Git.

Changed in version 0.6: The source repository was moved from Mercurial to Git.

Releases and project status are available on Pypi at

The most recent published version of this documentation should be at

Project Status

Alembic is currently in beta status and is expected to be fairly stable. Users should take care to report bugs and missing features (see Bugs) on an as-needed basis. It should be expected that the development version may be required for proper implementation of recently repaired issues in between releases; the latest master is always available at


Install released versions of Alembic from the Python package index with pip or a similar tool:

pip install alembic

Installation via source distribution is via the script:

python install

The install will add the alembic command to the environment. All operations with Alembic then proceed through the usage of this command.


Alembic’s install process will ensure that SQLAlchemy is installed, in addition to other dependencies. Alembic will work with SQLAlchemy as of version 0.7.3, however more features are available with newer versions such as the 0.9 or 1.0 series.

Alembic supports Python versions 2.6 and above.


Alembic is developed by Mike Bayer, and is loosely associated with the SQLAlchemy, Pylons, and Openstack projects.

User issues, discussion of potential bugs and features should be posted to the Alembic Google Group at sqlalchemy-alembic.


Bugs and feature enhancements to Alembic should be reported on the Bitbucket issue tracker.