Storm is an object-relational mapper (ORM) for Python.
It’s easy to write and support backends for Storm (current backends have around 100 lines of code).
Storm is free and open source software.
- Efficiently access and update large datasets by allowing you to formulate complex queries spanning multiple tables using Python.
- Allows you to fallback to SQL if needed (or if you just prefer), allowing you to mix “old school” code and ORM code
- Handles composed primary keys with ease (no need for surrogate keys).
- Doesn’t do schema management, and as a result you’re free to manage the schema as wanted, and creating classes that work with Storm is clean and simple.
- Works very well connecting to several databases and using the same Python types (or different ones) with all of them.
- Handles obj.attr assignments, when that’s really needed (the expression is executed at INSERT/UPDATE time).
- Handles relationships between objects even before they were added to a database.
- Works well with existing database schemas.
- Flush changes to the database automatically when needed, so that queries made affect recently modified objects.
License: Lesser General Public License, version 2.1
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