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paths
paths
**/*.py
**/*.pyi

Python 模式

本文档扩展了 common/patterns.md,补充了 Python 特定的内容。

协议(鸭子类型)

from typing import Protocol

class Repository(Protocol):
    def find_by_id(self, id: str) -> dict | None: ...
    def save(self, entity: dict) -> dict: ...

数据类作为 DTO

from dataclasses import dataclass

@dataclass
class CreateUserRequest:
    name: str
    email: str
    age: int | None = None

上下文管理器与生成器

  • 使用上下文管理器(with 语句)进行资源管理
  • 使用生成器进行惰性求值和内存高效迭代

参考

查看技能:python-patterns,了解包括装饰器、并发和包组织在内的综合模式。