{"action":"opened","issue":{"url":"https://api.github.com/repos/tornadoweb/tornado/issues/1609","labels_url":"https://api.github.com/repos/tornadoweb/tornado/issues/1609/labels{/name}","comments_url":"https://api.github.com/repos/tornadoweb/tornado/issues/1609/comments","events_url":"https://api.github.com/repos/tornadoweb/tornado/issues/1609/events","html_url":"https://github.com/tornadoweb/tornado/issues/1609","id":123060316,"number":1609,"title":"reverse_url should unescape regex string","user":{"login":"iceboy-sjtu","id":1206456,"avatar_url":"https://avatars.githubusercontent.com/u/1206456?v=3","gravatar_id":"","url":"https://api.github.com/users/iceboy-sjtu","html_url":"https://github.com/iceboy-sjtu","followers_url":"https://api.github.com/users/iceboy-sjtu/followers","following_url":"https://api.github.com/users/iceboy-sjtu/following{/other_user}","gists_url":"https://api.github.com/users/iceboy-sjtu/gists{/gist_id}","starred_url":"https://api.github.com/users/iceboy-sjtu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/iceboy-sjtu/subscriptions","organizations_url":"https://api.github.com/users/iceboy-sjtu/orgs","repos_url":"https://api.github.com/users/iceboy-sjtu/repos","events_url":"https://api.github.com/users/iceboy-sjtu/events{/privacy}","received_events_url":"https://api.github.com/users/iceboy-sjtu/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-12-19T04:04:13Z","updated_at":"2015-12-19T04:04:13Z","closed_at":null,"body":"For example we have the route\r\n```python\r\n(FaviconHandler, r'/favicon\\.ico', {}, 'favicon')\r\n```\r\nAnd reverse_url('favicon') gives us '/favicon\\\\.ico'."}}