tornadoist2
Installation
pip install tornadoist2
tornadoist -currently- provides Mixins to execute code outside tornado.ioloop.IOLoop to avoid blocking. These are:
CeleryMixin: Celery Tasks
ProcessMixin: Functions in separate process
Both support results, avoids polling or timeouts. More info below.
Demo app included. (Celery with mongodb:// preconfigured in demo app)
CeleryMixin
CeleryMixin is a Mixin class to use with tornado.web.RequestHandler that provides a Tornado-like interface to running Celery tasks on TornadoServer.
HowTO
Using tornado.gen
from tornado import web, gen
from tornadoist2 import CeleryMixin
class CeleryHandler(tornado.web.RequestHandler, CeleryMixin):
@web.asynchronous
@gen.engine
def get(self):
result = yield gen.Task(self.add_task, some_task, 'somearg')
self.write('Hello %s World!' % result)
self.finish()
Or using explicit callback
class CeleryHandler(tornado.web.RequestHandler, CeleryMixin):
@tornado.web.asynchronous
def get(self):
self.add_task(some_task, callback=self._on_result)
def _on_result(self, result):
do_something_with_result(result)
self.finish()
ProcessMixin
ProcessMixin is a Mixin class to use with tornado.web.RequestHandler that provides a Tornado-like interface to running functions with multiprocessing.Process outside IOLoop.
HowTO
Using tornado.gen
from tornado import web, gen
from tornadoist import ProcessMixin
class ProcessHandler(tornado.web.RequestHandler, ProcessMixin):
@tornado.web.asynchronous
@tornado.gen.engine
def get(self):
result = yield tornado.gen.Task(self.add_task, my_blocking_function,
'somearg', some_kwarg=42)
self.write('Hello Process World! %s' % result)
self.finish()
License
1 maintainer
Metadata
1 maintainer
Release files for tornadoist2 0.2.1
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Release files / tornadoist2-0.2.1.tar.gz
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