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Edit File: _capture.py

# -*- test-case-name: twisted.logger.test.test_capture -*- # Copyright (c) Twisted Matrix Laboratories. # See LICENSE for details. """ Context manager for capturing logs. """ from contextlib import contextmanager from typing import Iterator, List, Sequence, cast from twisted.logger import globalLogPublisher from ._interfaces import ILogObserver, LogEvent @contextmanager def capturedLogs() -> Iterator[Sequence[LogEvent]]: events: List[LogEvent] = [] observer = cast(ILogObserver, events.append) globalLogPublisher.addObserver(observer) yield events globalLogPublisher.removeObserver(observer)