contextlib — Utilities for with-statement contexts — Python 3.7.1rc1 documentation

contextlib — Utilities for with-statement contexts¶ Source code: Lib/contextlib.py This module provides utilities for common tasks involving the with statement. For more information see also Context Manager Types and With Statement Context Managers. Utilities¶ Functions and classes provided: class contextlib.AbstractContextManager¶ An abstract base class for classes that implement object.__enter__

[nabinno]

ユースケースはリモート制御、操作ロック、タイマーとか

[Carimatics]

へぇ、ExitStack良さそう

[mooz]

contextlib. yield で with したり．