{"action":"opened","issue":{"url":"https://api.github.com/repos/dask/dask-tutorial/issues/13","repository_url":"https://api.github.com/repos/dask/dask-tutorial","labels_url":"https://api.github.com/repos/dask/dask-tutorial/issues/13/labels{/name}","comments_url":"https://api.github.com/repos/dask/dask-tutorial/issues/13/comments","events_url":"https://api.github.com/repos/dask/dask-tutorial/issues/13/events","html_url":"https://github.com/dask/dask-tutorial/issues/13","id":193214600,"number":13,"title":"Remark on installing older lib version Mac obsolete?","user":{"login":"michaelaye","id":69774,"avatar_url":"https://avatars.githubusercontent.com/u/69774?v=3","gravatar_id":"","url":"https://api.github.com/users/michaelaye","html_url":"https://github.com/michaelaye","followers_url":"https://api.github.com/users/michaelaye/followers","following_url":"https://api.github.com/users/michaelaye/following{/other_user}","gists_url":"https://api.github.com/users/michaelaye/gists{/gist_id}","starred_url":"https://api.github.com/users/michaelaye/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/michaelaye/subscriptions","organizations_url":"https://api.github.com/users/michaelaye/orgs","repos_url":"https://api.github.com/users/michaelaye/repos","events_url":"https://api.github.com/users/michaelaye/events{/privacy}","received_events_url":"https://api.github.com/users/michaelaye/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2016-12-02T20:49:56Z","updated_at":"2016-12-02T20:49:56Z","closed_at":null,"body":"The tutorial 03b says:\r\n\r\n> If you're on a Mac you need to install the previous versions of h5py and pytables, like so:\r\nconda install h5py=2.4.0 pytables=3.1.1\r\nThe most recent versions of these libraries cause a segfault when writing to HDF5 storage.\r\n\r\nIt seems they are obsolete, even so I get an error later on now:\r\n\r\n```python\r\n%%time\r\nif os.path.exists('accounts.castra'):\r\n    import shutil\r\n    shutil.rmtree('accounts.castra')\r\n\r\nc = df.to_castra('accounts.castra', categories=['names'])\r\ndf3 = c.to_dask()\r\n```\r\n```ValueError: Expected iterable of tuples of (name, dtype), got ['id', 'names', 'amount']```"}}
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