tornadoist2

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

Apache License, Version 2.0

Release files for tornadoist2 0.2.1

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for tornadoist2 0.2.1
File	Size	Uploaded
tornadoist2-0.2.1.tar.gz	4.3 kB	Jun 8, 2017	Details

Release files / tornadoist2-0.2.1.tar.gz

Download URL	tornadoist2-0.2.1.tar.gz
Size	4.3 kB
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Upload date	Jun 8, 2017
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