Firebird
MaxDB
Support for the Informix database.
Note
The Informix dialect functions on current SQLAlchemy versions but is not regularly tested, and may have many issues and caveats not currently handled.
Support for the informixdb DBAPI.
informixdb is available at:
http://informixdb.sourceforge.net/
Sample informix connection:
engine = create_engine('informix+informixdb://user:password@host/dbname')