Hey all,

I'd like to create a tool to help with SQLAlchemy schema migration a
bit. I've been interested in this for a while now (ie. I'm not just
blindly copying a suggestion from this mailing list) - I'm working on a
TG project which I know will have a good number of database changes
later on (lots of small changes, mostly), and I need a way to manage
that. SQLAlchemy fits many other requirements for my project, but lacks
a tool to manage schema changes; I've been looking into how I'd make a
good schema migration tool - seems like a good candidate for my SoC
project.

I've made good progress on my proposal, though it's not done just yet.
I think I've got a pretty good plan so far, but more info on how this
has been done before would be helpful. So, my question: has anyone out
there have a schema migration tool they've used and really liked?

I'm familiar with these:
- SQLObject's versioning:
http://sqlobject.org/sqlobject-admin.html#versioning-upgrading
- Rails' migration:
http://api.rubyonrails.com/classes/ActiveRecord/Migration.html
- Writing migration scripts by hand (the "default" way to do things,
with no tool)
Anyone out there used something good for this that I haven't looked
into? 

Thanks.


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