{"action":"opened","issue":{"url":"https://api.github.com/repos/HEPData/hepdata-converter/issues/26","repository_url":"https://api.github.com/repos/HEPData/hepdata-converter","labels_url":"https://api.github.com/repos/HEPData/hepdata-converter/issues/26/labels{/name}","comments_url":"https://api.github.com/repos/HEPData/hepdata-converter/issues/26/comments","events_url":"https://api.github.com/repos/HEPData/hepdata-converter/issues/26/events","html_url":"https://github.com/HEPData/hepdata-converter/issues/26","id":166971080,"number":26,"title":"root: converter failing on some files with a null pointer","user":{"login":"eamonnmag","id":282396,"avatar_url":"https://avatars.githubusercontent.com/u/282396?v=3","gravatar_id":"","url":"https://api.github.com/users/eamonnmag","html_url":"https://github.com/eamonnmag","followers_url":"https://api.github.com/users/eamonnmag/followers","following_url":"https://api.github.com/users/eamonnmag/following{/other_user}","gists_url":"https://api.github.com/users/eamonnmag/gists{/gist_id}","starred_url":"https://api.github.com/users/eamonnmag/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/eamonnmag/subscriptions","organizations_url":"https://api.github.com/users/eamonnmag/orgs","repos_url":"https://api.github.com/users/eamonnmag/repos","events_url":"https://api.github.com/users/eamonnmag/events{/privacy}","received_events_url":"https://api.github.com/users/eamonnmag/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2016-07-22T05:09:13Z","updated_at":"2016-07-22T05:09:13Z","closed_at":null,"body":"e.g. https://www.hepdata.net/record/sandbox/1469163359\r\n\r\n```\r\ndef __init__(self, *args, **kwargs):\r\n        super(ROOT, self).__init__(*args, **kwargs)\r\n        self.extension = 'root'\r\n \r\n    def _write_table(self, data_out, table):\r\n        data_out.mkdir(table.name)\r\n        data_out.cd(table.name)\r\n \r\n        f = ObjectFactory(self.class_list, table.independent_variables, table.dependent_variables)\r\n        for graph in f.get_next_object():\r\n            graph.title = table.name\r\nReferenceError: attempt to access a null-pointer\r\n```"}}
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