{"action":"opened","issue":{"url":"https://api.github.com/repos/tornadoweb/tornado/issues/1884","repository_url":"https://api.github.com/repos/tornadoweb/tornado","labels_url":"https://api.github.com/repos/tornadoweb/tornado/issues/1884/labels{/name}","comments_url":"https://api.github.com/repos/tornadoweb/tornado/issues/1884/comments","events_url":"https://api.github.com/repos/tornadoweb/tornado/issues/1884/events","html_url":"https://github.com/tornadoweb/tornado/issues/1884","id":188677354,"number":1884,"title":"concurrent threadpoolexecutor ","user":{"login":"GeorgeXia1828","id":12082039,"avatar_url":"https://avatars.githubusercontent.com/u/12082039?v=3","gravatar_id":"","url":"https://api.github.com/users/GeorgeXia1828","html_url":"https://github.com/GeorgeXia1828","followers_url":"https://api.github.com/users/GeorgeXia1828/followers","following_url":"https://api.github.com/users/GeorgeXia1828/following{/other_user}","gists_url":"https://api.github.com/users/GeorgeXia1828/gists{/gist_id}","starred_url":"https://api.github.com/users/GeorgeXia1828/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/GeorgeXia1828/subscriptions","organizations_url":"https://api.github.com/users/GeorgeXia1828/orgs","repos_url":"https://api.github.com/users/GeorgeXia1828/repos","events_url":"https://api.github.com/users/GeorgeXia1828/events{/privacy}","received_events_url":"https://api.github.com/users/GeorgeXia1828/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2016-11-11T03:31:58Z","updated_at":"2016-11-11T03:31:58Z","closed_at":null,"body":"I am new to tornado, I am trying to use the threadpoolexecutor, found the example code running error \r\n`In [2]: import tornado\r\n\r\nIn [3]: from tornado import concurrent\r\n\r\nIn [4]: concurrent.futures.ThreadPoolExecutor\r\n---------------------------------------------------------------------------\r\nAttributeError                            Traceback (most recent call last)\r\n<ipython-input-4-13ee7079db29> in <module>()\r\n----> 1 concurrent.futures.ThreadPoolExecutor\r\n\r\nAttributeError: 'NoneType' object has no attribute 'ThreadPoolExecutor'\r\n\r\nIn [5]: \r\n`\r\ncan anyone explain it? I am using python 2.7"}}
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