attrs
A Python package that eliminates boilerplate code when writing classes by automatically implementing object protocols.
What is attrs?
attrs is a Python library that eliminates the need to write repetitive boilerplate code when defining classes. It automatically generates common object protocols (dunder methods) like `__init__`, `__repr__`, and `__eq__` based on declaratively defined attributes, allowing developers to focus on business logic. It solves the problem of maintaining verbose and error-prone class definitions while ensuring runtime performance.
Python developers who write many data-oriented or complex classes and want to reduce boilerplate, improve code clarity, and ensure correctness without performance overhead.
Developers choose attrs over alternatives because it is more flexible and feature-rich than Python's built-in `dataclasses`, offers backward-compatible APIs, and is trusted in high-stakes environments like NASA missions. It provides extensive customization hooks and works seamlessly with or without type annotations.
Overview
Python Classes Without Boilerplate
Use Cases
Best For
- Reducing boilerplate in data-heavy Python classes
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