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40 lines
1007 B
Markdown
40 lines
1007 B
Markdown
---
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paths:
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- "**/*.py"
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- "**/*.pyi"
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---
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# Python パターン
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> このファイルは [common/patterns.md](../common/patterns.md) を Python 固有のコンテンツで拡張します。
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## Protocol(ダックタイピング)
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```python
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from typing import Protocol
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class Repository(Protocol):
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def find_by_id(self, id: str) -> dict | None: ...
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def save(self, entity: dict) -> dict: ...
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```
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## DTO としての Dataclass
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```python
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from dataclasses import dataclass
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@dataclass
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class CreateUserRequest:
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name: str
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email: str
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age: int | None = None
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```
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## コンテキストマネージャとジェネレータ
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- リソース管理にはコンテキストマネージャ(`with` 文)を使用する
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- 遅延評価とメモリ効率の良いイテレーションにはジェネレータを使用する
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## リファレンス
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スキル: `python-patterns` でデコレータ、並行処理、パッケージ構成を含む包括的なパターンを参照してください。
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