{"action":"created","issue":{"url":"https://api.github.com/repos/ros/ros_comm/issues/908","repository_url":"https://api.github.com/repos/ros/ros_comm","labels_url":"https://api.github.com/repos/ros/ros_comm/issues/908/labels{/name}","comments_url":"https://api.github.com/repos/ros/ros_comm/issues/908/comments","events_url":"https://api.github.com/repos/ros/ros_comm/issues/908/events","html_url":"https://github.com/ros/ros_comm/issues/908","id":180163376,"number":908,"title":"rostopic echo topic/field no longer works","user":{"login":"mikepurvis","id":944666,"avatar_url":"https://avatars.githubusercontent.com/u/944666?v=3","gravatar_id":"","url":"https://api.github.com/users/mikepurvis","html_url":"https://github.com/mikepurvis","followers_url":"https://api.github.com/users/mikepurvis/followers","following_url":"https://api.github.com/users/mikepurvis/following{/other_user}","gists_url":"https://api.github.com/users/mikepurvis/gists{/gist_id}","starred_url":"https://api.github.com/users/mikepurvis/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mikepurvis/subscriptions","organizations_url":"https://api.github.com/users/mikepurvis/orgs","repos_url":"https://api.github.com/users/mikepurvis/repos","events_url":"https://api.github.com/users/mikepurvis/events{/privacy}","received_events_url":"https://api.github.com/users/mikepurvis/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/ros/ros_comm/labels/bug","name":"bug","color":"fc2929"}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2016-09-29T21:07:40Z","updated_at":"2016-09-29T21:47:53Z","closed_at":null,"body":"Looks like this might be more fallout from e0f63978fe0dd239ba8002a7e79756cdf1a335d0:\r\n\r\n```\r\n$ rostopic echo /rosout/msg -n 1\r\nTraceback (most recent call last):\r\n  File \"<ws>/lib/python2.7/dist-packages/rostopic/__init__.py\", line 940, in callback\r\n    self.suffix + '\\n')\r\n  File \"<ws>/lib/python2.7/dist-packages/rostopic/__init__.py\", line 876, in custom_strify_message\r\n    val = value_transform(val)\r\n  File \"<ws>/lib/python2.7/dist-packages/rostopic/__init__.py\", line 1393, in value_transform\r\n    class TransformedMessage(genpy.Message):\r\n  File \"<ws>/lib/python2.7/dist-packages/rostopic/__init__.py\", line 1396, in TransformedMessage\r\n    __slots__ = val.__slots__[:]\r\nAttributeError: 'str' object has no attribute '__slots__'\r\n\r\n$ rostopic echo /rosout/topics -n 1\r\nTraceback (most recent call last):\r\n  File \"<ws>/lib/python2.7/dist-packages/rostopic/__init__.py\", line 940, in callback\r\n    self.suffix + '\\n')\r\n  File \"<ws>/lib/python2.7/dist-packages/rostopic/__init__.py\", line 876, in custom_strify_message\r\n    val = value_transform(val)\r\n  File \"<ws>/lib/python2.7/dist-packages/rostopic/__init__.py\", line 1393, in value_transform\r\n    class TransformedMessage(genpy.Message):\r\n  File \"<ws>/lib/python2.7/dist-packages/rostopic/__init__.py\", line 1396, in TransformedMessage\r\n    __slots__ = val.__slots__[:]\r\nAttributeError: 'list' object has no attribute '__slots__'\r\n```\r\n\r\n@wkentaro @dirk-thomas Thoughts on a fix?"},"comment":{"url":"https://api.github.com/repos/ros/ros_comm/issues/comments/250600942","html_url":"https://github.com/ros/ros_comm/issues/908#issuecomment-250600942","issue_url":"https://api.github.com/repos/ros/ros_comm/issues/908","id":250600942,"user":{"login":"wkentaro","id":4310419,"avatar_url":"https://avatars.githubusercontent.com/u/4310419?v=3","gravatar_id":"","url":"https://api.github.com/users/wkentaro","html_url":"https://github.com/wkentaro","followers_url":"https://api.github.com/users/wkentaro/followers","following_url":"https://api.github.com/users/wkentaro/following{/other_user}","gists_url":"https://api.github.com/users/wkentaro/gists{/gist_id}","starred_url":"https://api.github.com/users/wkentaro/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wkentaro/subscriptions","organizations_url":"https://api.github.com/users/wkentaro/orgs","repos_url":"https://api.github.com/users/wkentaro/repos","events_url":"https://api.github.com/users/wkentaro/events{/privacy}","received_events_url":"https://api.github.com/users/wkentaro/received_events","type":"User","site_admin":false},"created_at":"2016-09-29T21:47:53Z","updated_at":"2016-09-29T21:47:53Z","body":"Sorry that I could not catching the case, #909 will fix the problem.\r\n\r\n```\r\n% rostopic echo /rosout/msg -n1\r\nhello world 1475185572.54\r\n---\r\n\r\n% rostopic echo /rosout/topics -n1\r\n['/chatter', '/rosout']\r\n---\r\n\r\n% rostopic echo /rosout/topics -n1 --noarr\r\nNone\r\n---\r\n\r\n% rostopic echo /rosout/msg -n1 --nostr\r\nNone\r\n---\r\n```"}}
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