{"action":"created","issue":{"url":"https://api.github.com/repos/miguelgrinberg/Flask-SocketIO/issues/150","labels_url":"https://api.github.com/repos/miguelgrinberg/Flask-SocketIO/issues/150/labels{/name}","comments_url":"https://api.github.com/repos/miguelgrinberg/Flask-SocketIO/issues/150/comments","events_url":"https://api.github.com/repos/miguelgrinberg/Flask-SocketIO/issues/150/events","html_url":"https://github.com/miguelgrinberg/Flask-SocketIO/issues/150","id":110882038,"number":150,"title":"Threading server selected over eventlet server (v1.0b)","user":{"login":"PTaylour","id":3678476,"avatar_url":"https://avatars.githubusercontent.com/u/3678476?v=3","gravatar_id":"","url":"https://api.github.com/users/PTaylour","html_url":"https://github.com/PTaylour","followers_url":"https://api.github.com/users/PTaylour/followers","following_url":"https://api.github.com/users/PTaylour/following{/other_user}","gists_url":"https://api.github.com/users/PTaylour/gists{/gist_id}","starred_url":"https://api.github.com/users/PTaylour/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/PTaylour/subscriptions","organizations_url":"https://api.github.com/users/PTaylour/orgs","repos_url":"https://api.github.com/users/PTaylour/repos","events_url":"https://api.github.com/users/PTaylour/events{/privacy}","received_events_url":"https://api.github.com/users/PTaylour/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-10-11T20:56:49Z","updated_at":"2015-10-12T22:33:49Z","closed_at":null,"body":"Hi all,\r\n\r\nI'm having trouble starting flask_socketio with the eventlet server.\r\n\r\nI only have eventlet installed, nothing that resembles gevent:\r\n```\r\npip freeze | grep event\r\neventlet==0.17.4\r\n\r\npip freeze | grep gevent\r\n# nothing to see here\r\n```\r\n\r\nYet, the following (with or without the explicit async_mode='eventlet')\r\n```\r\nfrom flask_socketio import SocketIO\r\nsocketio = SocketIO()\r\n\r\n[...]\r\n\r\nsocketio.init_app(app, engineio_logger=True, async_mode='eventlet')\r\n```\r\n\r\nprints out this:\r\n`Server initialized for threading.`\r\n\r\non starting the app.\r\nAm I doing something obviously wrong?\r\n"},"comment":{"url":"https://api.github.com/repos/miguelgrinberg/Flask-SocketIO/issues/comments/147540546","html_url":"https://github.com/miguelgrinberg/Flask-SocketIO/issues/150#issuecomment-147540546","issue_url":"https://api.github.com/repos/miguelgrinberg/Flask-SocketIO/issues/150","id":147540546,"user":{"login":"ktoh","id":2960303,"avatar_url":"https://avatars.githubusercontent.com/u/2960303?v=3","gravatar_id":"","url":"https://api.github.com/users/ktoh","html_url":"https://github.com/ktoh","followers_url":"https://api.github.com/users/ktoh/followers","following_url":"https://api.github.com/users/ktoh/following{/other_user}","gists_url":"https://api.github.com/users/ktoh/gists{/gist_id}","starred_url":"https://api.github.com/users/ktoh/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ktoh/subscriptions","organizations_url":"https://api.github.com/users/ktoh/orgs","repos_url":"https://api.github.com/users/ktoh/repos","events_url":"https://api.github.com/users/ktoh/events{/privacy}","received_events_url":"https://api.github.com/users/ktoh/received_events","type":"User","site_admin":false},"created_at":"2015-10-12T22:33:49Z","updated_at":"2015-10-12T22:33:49Z","body":"I ran I to something similar with a 0.60 project migrating to 1.0b.\r\nIn my case, uninstalling packages (in particular gevent and gevent-socketio) fixed the problem. \r\n"}}