{"action":"created","issue":{"url":"https://api.github.com/repos/jupyter/notebook/issues/4168","repository_url":"https://api.github.com/repos/jupyter/notebook","labels_url":"https://api.github.com/repos/jupyter/notebook/issues/4168/labels{/name}","comments_url":"https://api.github.com/repos/jupyter/notebook/issues/4168/comments","events_url":"https://api.github.com/repos/jupyter/notebook/issues/4168/events","html_url":"https://github.com/jupyter/notebook/issues/4168","id":377770046,"node_id":"MDU6SXNzdWUzNzc3NzAwNDY=","number":4168,"title":"ImportError: cannot import name 'ensure_dir_exists'","user":{"login":"keithbriggs","id":5146641,"node_id":"MDQ6VXNlcjUxNDY2NDE=","avatar_url":"https://avatars0.githubusercontent.com/u/5146641?v=4","gravatar_id":"","url":"https://api.github.com/users/keithbriggs","html_url":"https://github.com/keithbriggs","followers_url":"https://api.github.com/users/keithbriggs/followers","following_url":"https://api.github.com/users/keithbriggs/following{/other_user}","gists_url":"https://api.github.com/users/keithbriggs/gists{/gist_id}","starred_url":"https://api.github.com/users/keithbriggs/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/keithbriggs/subscriptions","organizations_url":"https://api.github.com/users/keithbriggs/orgs","repos_url":"https://api.github.com/users/keithbriggs/repos","events_url":"https://api.github.com/users/keithbriggs/events{/privacy}","received_events_url":"https://api.github.com/users/keithbriggs/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-11-06T09:57:24Z","updated_at":"2018-11-07T16:06:19Z","closed_at":null,"author_association":"NONE","body":"I get this after a pip install on an up-to-date Ubuntu system.  What causes this?\r\n\r\n~> jupyter notebook\r\nTraceback (most recent call last):\r\n  File \"/usr/local/bin/jupyter-notebook\", line 7, in <module>\r\n    from notebook.notebookapp import main\r\n  File \"/usr/local/lib/python3.4/dist-packages/notebook/__init__.py\", line 25, in <module>\r\n    from .nbextensions import install_nbextension\r\n  File \"/usr/local/lib/python3.4/dist-packages/notebook/nbextensions.py\", line 27, in <module>\r\n    from jupyter_core.utils import ensure_dir_exists\r\nImportError: cannot import name 'ensure_dir_exists'"},"comment":{"url":"https://api.github.com/repos/jupyter/notebook/issues/comments/436676795","html_url":"https://github.com/jupyter/notebook/issues/4168#issuecomment-436676795","issue_url":"https://api.github.com/repos/jupyter/notebook/issues/4168","id":436676795,"node_id":"MDEyOklzc3VlQ29tbWVudDQzNjY3Njc5NQ==","user":{"login":"takluyver","id":327925,"node_id":"MDQ6VXNlcjMyNzkyNQ==","avatar_url":"https://avatars3.githubusercontent.com/u/327925?v=4","gravatar_id":"","url":"https://api.github.com/users/takluyver","html_url":"https://github.com/takluyver","followers_url":"https://api.github.com/users/takluyver/followers","following_url":"https://api.github.com/users/takluyver/following{/other_user}","gists_url":"https://api.github.com/users/takluyver/gists{/gist_id}","starred_url":"https://api.github.com/users/takluyver/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/takluyver/subscriptions","organizations_url":"https://api.github.com/users/takluyver/orgs","repos_url":"https://api.github.com/users/takluyver/repos","events_url":"https://api.github.com/users/takluyver/events{/privacy}","received_events_url":"https://api.github.com/users/takluyver/received_events","type":"User","site_admin":false},"created_at":"2018-11-07T16:06:19Z","updated_at":"2018-11-07T16:06:19Z","author_association":"MEMBER","body":"Probably an old version of `jupyter_core`. Try uninstalling and reinstalling that."}}
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