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"""
Output an Eliot message to a log file using the threaded log writer.
"""
from twisted.internet.task import react
from eliot.logwriter import ThreadedWriter
from eliot import log_message, FileDestination
def main(reactor):
print("Logging to example-eliot.log...")
logWriter = ThreadedWriter(
FileDestination(file=open("example-eliot.log", "ab")), reactor)
# Manually start the service, which will add it as a
# destination. Normally we'd register ThreadedWriter with the usual
# Twisted Service/Application infrastructure.
logWriter.startService()
# Log a message:
log_message(message_type="test", value="hello", another=1)
# Manually stop the service.
done = logWriter.stopService()
return done
if __name__ == '__main__':
react(main, [])
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