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<div dir="ltr">Eliot 0.9 is out, with a new utility for pretty-printing log messages and <a href="http://eliot.readthedocs.org/en/0.9.0/journald.html">native journald support</a>. You can now route Eliot logs to journald and when an error occurs easily find all logged actions that led up to that particular error, as opposed to most logging systems where this would involve reading all the logs and figuring out which ones apply and which to ignore.</div>
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<div dir="ltr">Most logging systems can tell you what happened; Eliot tells you <em>why</em> it happened:<br />
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<div><br /><span style="font-family: monospace,monospace;">$ python linkcheck.py | eliot-tree<br />4c42a789-76f5-4f0b-b154-3dd0e3041445<br />+-- check_links@1/started<br /> `-- urls: [u'http://google.com', u'http://nosuchurl']<br /> +-- download@2,1/started<br /> `-- url: http://google.com<br /> +-- download@2,2/succeeded<br /> +-- download@3,1/started<br /> `-- url: http://nosuchurl<br /> +-- download@3,2/failed<br /> |-- exception: requests.exceptions.ConnectionError<br /> |-- reason: ('Conn aborted', gaierror(-2, 'Name unknown'))<br /> +-- check_links@4/failed<br /> |-- exception: exceptions.ValueError<br /> |-- reason: ('Conn aborted.', gaierror(-2, 'Name unknown'))<br /></span></div>
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<div>And here's the code that generated these logs (<a href="https://warehouse.python.org/project/eliot-tree/">eliot-tree</a> was used to render the output):<br /><br /><span style="font-family: monospace,monospace;">import sys<br />from eliot import start_action, to_file<br />import requests<br />to_file(sys.stdout)<br /><br />def check_links(urls):<br /> with start_action(action_type="check_links", urls=urls):<br /> for url in urls:<br /> try:<br /> with start_action(action_type="download", url=url):<br /> response = requests.get(url)<br /> response.raise_for_status()<br /> except Exception as e:<br /> raise ValueError(str(e))<br /><br />check_links(["http://google.com"], ["http://nosuchurl"])<br /><br /><span style="font-family: arial,helvetica,sans-serif;"><br /></span></span></div>
<div><span style="font-family: arial,helvetica,sans-serif;">Interested? Read more at <a href="https://eliot.readthedocs.org/">https://eliot.readthedocs.org/</a>.<br /><br />Eliot is released under the Apache License 2 by <a href="https://clusterhq.com">ClusterHQ</a>, the Container Data People. <a href="https://clusterhq.com/careers/">We're hiring!</a><br /></span></div>
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