{"action":"created","issue":{"url":"https://api.github.com/repos/ipython/ipython/issues/7869","labels_url":"https://api.github.com/repos/ipython/ipython/issues/7869/labels{/name}","comments_url":"https://api.github.com/repos/ipython/ipython/issues/7869/comments","events_url":"https://api.github.com/repos/ipython/ipython/issues/7869/events","html_url":"https://github.com/ipython/ipython/issues/7869","id":58975161,"number":7869,"title":"Notebook validation failing on seemingly valid notebooks","user":{"login":"abeguerra","id":2163279,"avatar_url":"https://avatars.githubusercontent.com/u/2163279?v=3","gravatar_id":"","url":"https://api.github.com/users/abeguerra","html_url":"https://github.com/abeguerra","followers_url":"https://api.github.com/users/abeguerra/followers","following_url":"https://api.github.com/users/abeguerra/following{/other_user}","gists_url":"https://api.github.com/users/abeguerra/gists{/gist_id}","starred_url":"https://api.github.com/users/abeguerra/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/abeguerra/subscriptions","organizations_url":"https://api.github.com/users/abeguerra/orgs","repos_url":"https://api.github.com/users/abeguerra/repos","events_url":"https://api.github.com/users/abeguerra/events{/privacy}","received_events_url":"https://api.github.com/users/abeguerra/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":{"url":"https://api.github.com/repos/ipython/ipython/milestones/11","html_url":"https://github.com/ipython/ipython/milestones/no%20action","labels_url":"https://api.github.com/repos/ipython/ipython/milestones/11/labels","id":247447,"number":11,"title":"no action","description":"A milestone for closed or open issues for which there is no action needed.\r\n\r\n- duplicate\r\n- not a bug\r\n- just a question / discussion, nothing to resolve\r\n- wontfix\r\n- etc.","creator":{"login":"minrk","id":151929,"avatar_url":"https://avatars.githubusercontent.com/u/151929?v=3","gravatar_id":"","url":"https://api.github.com/users/minrk","html_url":"https://github.com/minrk","followers_url":"https://api.github.com/users/minrk/followers","following_url":"https://api.github.com/users/minrk/following{/other_user}","gists_url":"https://api.github.com/users/minrk/gists{/gist_id}","starred_url":"https://api.github.com/users/minrk/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/minrk/subscriptions","organizations_url":"https://api.github.com/users/minrk/orgs","repos_url":"https://api.github.com/users/minrk/repos","events_url":"https://api.github.com/users/minrk/events{/privacy}","received_events_url":"https://api.github.com/users/minrk/received_events","type":"User","site_admin":false},"open_issues":14,"closed_issues":1677,"state":"open","created_at":"2013-01-19T01:33:01Z","updated_at":"2015-02-25T21:49:06Z","due_on":null,"closed_at":null},"comments":4,"created_at":"2015-02-25T21:46:09Z","updated_at":"2015-02-25T22:07:03Z","closed_at":null,"body":"The notebook validation for the notebook linked below is failing. The error I see is:\r\n\r\nNotebook Validation failed: [] is not of type u'object'\r\n\r\nI am running notebook server version 3.0.0-b1-16f4598\r\n\r\nNotebooks which are failing validation:\r\n1. https://raw.githubusercontent.com/ipython-books/cookbook-code/master/notebooks/chapter01_basic/01_notebook.ipynb\r\n2. https://raw.githubusercontent.com/ipython-books/cookbook-code/master/notebooks/chapter01_basic/02_pandas.ipynb\r\n\r\nThe notebooks are from this repo (https://github.com/ipython-books/cookbook-code/tree/master/notebooks/chapter01_basic) and seem like valid notebooks to me. I see no problem in the notebook cells and am even able to run the cells.\r\n\r\nIs this a bug? What is the expected behavior?\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/ipython/ipython/issues/comments/76071036","html_url":"https://github.com/ipython/ipython/issues/7869#issuecomment-76071036","issue_url":"https://api.github.com/repos/ipython/ipython/issues/7869","id":76071036,"user":{"login":"abeguerra","id":2163279,"avatar_url":"https://avatars.githubusercontent.com/u/2163279?v=3","gravatar_id":"","url":"https://api.github.com/users/abeguerra","html_url":"https://github.com/abeguerra","followers_url":"https://api.github.com/users/abeguerra/followers","following_url":"https://api.github.com/users/abeguerra/following{/other_user}","gists_url":"https://api.github.com/users/abeguerra/gists{/gist_id}","starred_url":"https://api.github.com/users/abeguerra/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/abeguerra/subscriptions","organizations_url":"https://api.github.com/users/abeguerra/orgs","repos_url":"https://api.github.com/users/abeguerra/repos","events_url":"https://api.github.com/users/abeguerra/events{/privacy}","received_events_url":"https://api.github.com/users/abeguerra/received_events","type":"User","site_admin":false},"created_at":"2015-02-25T22:07:03Z","updated_at":"2015-02-25T22:07:03Z","body":"I get the above error on load. I get the following error on save:\r\nUnexpected error while saving file: 02_pandas.ipynb pop() takes at most 1 argument (2 given)"}}