{"action":"created","comment":{"url":"https://api.github.com/repos/bokeh/bokeh/pulls/comments/59406032","id":59406032,"diff_hunk":"@@ -25,6 +26,38 @@\n \n DEFAULT_TITLE = \"Bokeh Application\"\n \n+class DocumentProxy(object):\n+    ''' Wrap a Document object so that only methods that can safely be used\n+    from unlocked callbacks or threads are exposed. Attempts to otherwise\n+    access or change the Document results in an exception.\n+\n+    '''\n+\n+    def __init__(self, doc):\n+        self._doc = doc\n+\n+    def __getattr__(self, attr):\n+        raise RuntimeError(\"Only add_next_tick_callback may be used safely from DocumentProxy\")","path":"bokeh/document.py","position":23,"original_position":23,"commit_id":"400d98b4a8a028cff9fa859c90b8638126281822","original_commit_id":"400d98b4a8a028cff9fa859c90b8638126281822","user":{"login":"bryevdv","id":1078448,"avatar_url":"https://avatars.githubusercontent.com/u/1078448?v=3","gravatar_id":"","url":"https://api.github.com/users/bryevdv","html_url":"https://github.com/bryevdv","followers_url":"https://api.github.com/users/bryevdv/followers","following_url":"https://api.github.com/users/bryevdv/following{/other_user}","gists_url":"https://api.github.com/users/bryevdv/gists{/gist_id}","starred_url":"https://api.github.com/users/bryevdv/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bryevdv/subscriptions","organizations_url":"https://api.github.com/users/bryevdv/orgs","repos_url":"https://api.github.com/users/bryevdv/repos","events_url":"https://api.github.com/users/bryevdv/events{/privacy}","received_events_url":"https://api.github.com/users/bryevdv/received_events","type":"User","site_admin":false},"body":"Yah, I realized that as well, but that also generates an exception... maybe we could make it better/more verbose, but we can also certainly document loudly around `@without_document_lock` and since it is a thing that has to be done affirmatively and explicitly, I think it's ok. I will make the suggested other changes, your messages are always great :) ","created_at":"2016-04-12T16:20:22Z","updated_at":"2016-04-12T16:20:22Z","html_url":"https://github.com/bokeh/bokeh/pull/4152#discussion_r59406032","pull_request_url":"https://api.github.com/repos/bokeh/bokeh/pulls/4152","_links":{"self":{"href":"https://api.github.com/repos/bokeh/bokeh/pulls/comments/59406032"},"html":{"href":"https://github.com/bokeh/bokeh/pull/4152#discussion_r59406032"},"pull_request":{"href":"https://api.github.com/repos/bokeh/bokeh/pulls/4152"}}},"pull_request":{"url":"https://api.github.com/repos/bokeh/bokeh/pulls/4152","id":65893566,"html_url":"https://github.com/bokeh/bokeh/pull/4152","diff_url":"https://github.com/bokeh/bokeh/pull/4152.diff","patch_url":"https://github.com/bokeh/bokeh/pull/4152.patch","issue_url":"https://api.github.com/repos/bokeh/bokeh/issues/4152","number":4152,"state":"open","locked":false,"title":"add a decorator to allow callbacks to execute without a 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