{"action":"closed","issue":{"url":"https://api.github.com/repos/spotify/luigi/issues/1350","labels_url":"https://api.github.com/repos/spotify/luigi/issues/1350/labels{/name}","comments_url":"https://api.github.com/repos/spotify/luigi/issues/1350/comments","events_url":"https://api.github.com/repos/spotify/luigi/issues/1350/events","html_url":"https://github.com/spotify/luigi/issues/1350","id":113377249,"number":1350,"title":"Argument parsing failing during execution summary","user":{"login":"aslafy-z","id":8191198,"avatar_url":"https://avatars.githubusercontent.com/u/8191198?v=3","gravatar_id":"","url":"https://api.github.com/users/aslafy-z","html_url":"https://github.com/aslafy-z","followers_url":"https://api.github.com/users/aslafy-z/followers","following_url":"https://api.github.com/users/aslafy-z/following{/other_user}","gists_url":"https://api.github.com/users/aslafy-z/gists{/gist_id}","starred_url":"https://api.github.com/users/aslafy-z/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/aslafy-z/subscriptions","organizations_url":"https://api.github.com/users/aslafy-z/orgs","repos_url":"https://api.github.com/users/aslafy-z/repos","events_url":"https://api.github.com/users/aslafy-z/events{/privacy}","received_events_url":"https://api.github.com/users/aslafy-z/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-10-26T15:12:02Z","updated_at":"2015-11-01T23:47:03Z","closed_at":"2015-11-01T23:47:03Z","body":"Execution summary couldn't generate arguments list.\r\n\r\n```python\r\nTraceback (most recent call last):\r\n  File \"main.py\", line 60, in <module>\r\n    main()\r\n  File \"main.py\", line 57, in main\r\n    build([Crawler(user=dump(user, user.username))], workers=8)\r\n  File \"/usr/lib/python3.5/site-packages/luigi/interface.py\", line 261, in build\r\n    return _schedule_and_run(tasks, worker_scheduler_factory, override_defaults=env_params)['success']\r\n  File \"/usr/lib/python3.5/site-packages/luigi/interface.py\", line 195, in _schedule_and_run\r\n    logger.info(execution_summary.summary(w))\r\n  File \"/usr/lib/python3.5/site-packages/luigi/execution_summary.py\", line 384, in summary\r\n    return _summary_wrap(_summary_format(_summary_dict(worker), worker))\r\n  File \"/usr/lib/python3.5/site-packages/luigi/execution_summary.py\", line 333, in _summary_format\r\n    str_output += '{0}\\n'.format(_get_str(group_tasks[status], status in _PENDING_SUB_STATUSES))\r\n  File \"/usr/lib/python3.5/site-packages/luigi/execution_summary.py\", line 132, in _get_str\r\n    params = _get_set_of_params(tasks)\r\n  File \"/usr/lib/python3.5/site-packages/luigi/execution_summary.py\", line 173, in _get_set_of_params\r\n    params[param] = {getattr(task, param[0]) for task in tasks}\r\n  File \"/usr/lib/python3.5/site-packages/luigi/execution_summary.py\", line 173, in <setcomp>\r\n    params[param] = {getattr(task, param[0]) for task in tasks}\r\nTypeError: unhashable type: 'dict'\r\n```\r\n\r\nparams[param] must be params[param[0]]"}}