mher/tornado-celery — pull request #48 by FlorianLudwig (2014-12-17 11:52:36+00:00)
Title: callback argument for setup_nonblocking_producer

Tornado expects callback arguemnts to be namend "callback"
for example to allow the following code to work:

yield gen.Task(tcelery.setup_nonblocking_producer)

Therefor add "callback" to setup_nonblocking_producer but
keep "on_ready" around for backward compatibility