{"action":"created","issue":{"url":"https://api.github.com/repos/marshmallow-code/marshmallow/issues/121","labels_url":"https://api.github.com/repos/marshmallow-code/marshmallow/issues/121/labels{/name}","comments_url":"https://api.github.com/repos/marshmallow-code/marshmallow/issues/121/comments","events_url":"https://api.github.com/repos/marshmallow-code/marshmallow/issues/121/events","html_url":"https://github.com/marshmallow-code/marshmallow/issues/121","id":53188169,"number":121,"title":"Use error_handler when valdating/deserializing","user":{"login":"sloria","id":2379650,"avatar_url":"https://avatars.githubusercontent.com/u/2379650?v=3","gravatar_id":"","url":"https://api.github.com/users/sloria","html_url":"https://github.com/sloria","followers_url":"https://api.github.com/users/sloria/followers","following_url":"https://api.github.com/users/sloria/following{/other_user}","gists_url":"https://api.github.com/users/sloria/gists{/gist_id}","starred_url":"https://api.github.com/users/sloria/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sloria/subscriptions","organizations_url":"https://api.github.com/users/sloria/orgs","repos_url":"https://api.github.com/users/sloria/repos","events_url":"https://api.github.com/users/sloria/events{/privacy}","received_events_url":"https://api.github.com/users/sloria/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/marshmallow-code/marshmallow/labels/bug","name":"bug","color":"fc2929"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2014-12-31T15:21:39Z","updated_at":"2015-01-01T23:55:12Z","closed_at":null,"body":"Currently, the `error_handler` callback is only executed when  serialization error occurs. It should also be executed when a deserialization/validation error occurs."},"comment":{"url":"https://api.github.com/repos/marshmallow-code/marshmallow/issues/comments/68502813","html_url":"https://github.com/marshmallow-code/marshmallow/issues/121#issuecomment-68502813","issue_url":"https://api.github.com/repos/marshmallow-code/marshmallow/issues/121","id":68502813,"user":{"login":"sloria","id":2379650,"avatar_url":"https://avatars.githubusercontent.com/u/2379650?v=3","gravatar_id":"","url":"https://api.github.com/users/sloria","html_url":"https://github.com/sloria","followers_url":"https://api.github.com/users/sloria/followers","following_url":"https://api.github.com/users/sloria/following{/other_user}","gists_url":"https://api.github.com/users/sloria/gists{/gist_id}","starred_url":"https://api.github.com/users/sloria/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sloria/subscriptions","organizations_url":"https://api.github.com/users/sloria/orgs","repos_url":"https://api.github.com/users/sloria/repos","events_url":"https://api.github.com/users/sloria/events{/privacy}","received_events_url":"https://api.github.com/users/sloria/received_events","type":"User","site_admin":false},"created_at":"2015-01-01T23:55:12Z","updated_at":"2015-01-01T23:55:12Z","body":"Actually, the error is executed correctly when calling `Schema#load` but it is not execute on calling `Schema#validate`. Will issue a fix shortly."}}