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Pony is an object-relational mapper. The most interesting feature of Pony is its ability to write queries to the database using generator expressions. Pony works with entities which are mapped to a SQL database. Using generator syntax for writing queries allows the user to formulate very eloquent queries. It increases the level of abstraction and allows a programmer to concentrate on the business logic of the application.
Following is an example of a query in Pony:
select(p for p in Product if p.name.startswith('A') and p.cost <= 1000)
Pony translates queries to SQL using a specific database dialect. ...