tornado blocking task gevent workers async example

tornado_gevent_async.py

# Do this as early as possible in your application:
from gevent import monkey; monkey.patch_all()
from tornado.web import RequestHandler, asynchronous

import gevent
 
class MyHandler(RequestHandler):
    @asynchronous
    def get(self, *args, **kwargs):
        def async_task():
            data = run_blocking_task()
            self.write(data)
            self.finish()
        gevent.spawn(async_task)