fix RuntimeError: IOLoop is already running #374
fix RuntimeError: IOLoop is already running #374

when using with tornado.wsgi.WSGIContainer

qiulimao/weblocust,lashwang/pyspider,VDuda/pyspider,nicozhang/pyspider,e-dorigatti/pyspider,wangjun/pyspider,wonderay/pyspider,nicozhang/pyspider,nicozhang/pyspider,luoq/pyspider,lashwang/pyspider,wangjun/pyspider,luoq/pyspider,e-dorigatti/pyspider,wangjun/pyspider,snakeliwei/pyspider,binux/pyspider,eromoe/pyspider,wonderay/pyspider,VDuda/pyspider,binux/pyspider,eromoe/pyspider,e-dorigatti/pyspider,eromoe/pyspider,qiulimao/weblocust,wonderay/pyspider,luoq/pyspider,snakeliwei/pyspider,snakeliwei/pyspider,qiulimao/weblocust,lashwang/pyspider,binux/pyspider,VDuda/pyspider