# Unit of Work: Managing Database Transactions Like a Pro with Python

Short summary

The Unit of Work pattern ensures database transactions execute atomically—all changes succeed together or none do, preventing inconsistent data states. The article explains core operations (register_new, register_dirty, register_deleted, commit), demonstrates the problem with independent commits via an e-commerce order example, and provides step-by-step Python implementation. Essential for backend developers managing complex multi-table operations.

• •Unit of Work batches database operations into atomic transactions to prevent partial updates and data inconsistency
• •Shows concrete problem: naive per-operation commits can leave database in inconsistent state if any step fails
• •Provides Python implementation using dataclasses without external dependencies, referencing Martin Fowler's enterprise patterns

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