I've used migrate for a project before; it has some rough spots but it does
work. That being said, it's usefulness is debatable.

Cheers,
David

Neil Blakey-Milner wrote:

> 
> On 5/28/07, Brendan Arnold
> <[EMAIL PROTECTED]> wrote:
>> Is there at present a database evolutions tool similar to migrations in
>> RoR?
>>
>> For those that are unfamiliar, this system:
>>
>> o Defines initial tables
>> o Subsequent changes to the tables (i.e. drop/add a column/new table)
>> are are then defined and have a version number associated to each
>> change. Undo changes also defined for each step
>> o Command-line tool then can be used to move from one version of the
>> database schema to the next by iterating up/down through the steps
> 
> Migrate - http://erosson.com/migrate/trac/ - is supposed to do this
> (for SQLAlchemy).  Haven't got around to using it, though, and there
> doesn't seem to be much traffic on the mailing list.
> 
> Neil



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