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Question - is there any web/api framework that leverages asyncio ? This implicitly also means first class DB/ORM support. Flask, sqlalchemy ,etc seem to be usi

Question - is there any web/api framework that leverages asyncio ? This implicitly also means first class DB/ORM support. Flask, sqlalchemy ,etc seem to be using gevent and py 2.7.

e12e 11y ago
I'm not sure, but perhaps aiohttp[1] fits the bill? Not sure if there's a "full" framework that does everything, but take a look at the simple benchmark code: https://github.com/klen/py-frameworks-bench/blob/develop/frameworks/aiohttp/app.py https://github.com/klen/py-frameworks-bench/blob/develop/fra... (from: http://klen.github.io/py-frameworks-bench/ http://klen.github.io/py-frameworks-bench/) [1] http://aiohttp.readthedocs.org/en/stable/ http://aiohttp.readthedocs.org/en/stable/
- sandGorgon 11y ago
  in this case, how are most of you guys writing code with asyncio ? or is there any code being written at all. Right now, it seems to me that Python 3.5 is not ready for adoption since it is not usable with any framework at all. I mean, I really want to use asyncio, but 99% of python mindshare is around SqlAlchemy, Bottle, Flask, Django and Cherrypy. and I cant use it with any of them. aiohttp looks cool, but I would much rather use one of the above for now. Anybody know why are none of these framework maintainers leveraging this stuff ?
  - iso8859-1 11y ago
    You can definitely use asyncio with CherryPy: http://ws4py.readthedocs.org/en/latest/sources/servertutorial/#asyncio http://ws4py.readthedocs.org/en/latest/sources/servertutoria...
    - iso8859-1 11y ago
      Sorry, I was confused, that is not true.
- deleted 11y ago
  [deleted]
telendt 11y ago
Yes, there is. https://github.com/KeepSafe/aiohttp https://github.com/KeepSafe/aiohttp It's hard to write an asynchronous ORM though. Your options are either to use some existing synchronous ORM (like SQLAlchemy) in a thread pool (`loop.run_in_executor`) or use more low-level db driver: https://github.com/aio-libs/aiopg#example-of-sqlalchemy-optional-integration https://github.com/aio-libs/aiopg#example-of-sqlalchemy-opti...
- deleted 11y ago
  [deleted]
- sandGorgon 11y ago
  psycogreen is one such attempt with gevent - it works pretty well actually. that actually illustrates the confusion I'm having - gevent+py2.7 is actually working with all the major frameworks and giving all these performance benefits. In fact if you look closely at the benchmark code (https://github.com/klen/py-frameworks-bench/blob/develop/frameworks/flask/requirements.txt https://github.com/klen/py-frameworks-bench/blob/develop/fra...), the comparison is not against flask+gevent+psycogreen which may change the numbers. https://pypi.python.org/pypi/psycogreen/1.0 https://pypi.python.org/pypi/psycogreen/1.0
- eeZi 11y ago
  The RethinkDB Python driver works exceptionally well with asyncio.
- e12e 11y ago
  The asyncio example/benchmark snippet I linked above uses peewee-async: https://peewee-async.readthedocs.org https://peewee-async.readthedocs.org
anebg 11y ago
Pulsar[1] and pulsar-odm seem to be the python equivalent of akka-http. (Actor based concurrency and ORM[2]) [1] http://pythonhosted.org/pulsar/ http://pythonhosted.org/pulsar/ [2] https://pypi.python.org/pypi/pulsar-odm https://pypi.python.org/pypi/pulsar-odm
aldanor 11y ago
Tornado added support for that recently, I believe

Question - is there any web/api framework that leverages asyncio ? This implicitly also means first class DB/ORM support. Flask, sqlalchemy ,etc seem to be using gevent and py 2.7.

e12e 11y ago

I'm not sure, but perhaps aiohttp[1] fits the bill? Not sure if there's a "full" framework that does everything, but take a look at the simple benchmark code: https://github.com/klen/py-frameworks-bench/blob/develop/frameworks/aiohttp/app.py https://github.com/klen/py-frameworks-bench/blob/develop/fra... (from: http://klen.github.io/py-frameworks-bench/ http://klen.github.io/py-frameworks-bench/) [1] http://aiohttp.readthedocs.org/en/stable/ http://aiohttp.readthedocs.org/en/stable/

sandGorgon 11y ago
in this case, how are most of you guys writing code with asyncio ? or is there any code being written at all. Right now, it seems to me that Python 3.5 is not ready for adoption since it is not usable with any framework at all. I mean, I really want to use asyncio, but 99% of python mindshare is around SqlAlchemy, Bottle, Flask, Django and Cherrypy. and I cant use it with any of them. aiohttp looks cool, but I would much rather use one of the above for now. Anybody know why are none of these framework maintainers leveraging this stuff ?
- iso8859-1 11y ago
  You can definitely use asyncio with CherryPy: http://ws4py.readthedocs.org/en/latest/sources/servertutorial/#asyncio http://ws4py.readthedocs.org/en/latest/sources/servertutoria...
  - iso8859-1 11y ago
    Sorry, I was confused, that is not true.
deleted 11y ago
[deleted]

telendt 11y ago

Yes, there is. https://github.com/KeepSafe/aiohttp https://github.com/KeepSafe/aiohttp It's hard to write an asynchronous ORM though. Your options are either to use some existing synchronous ORM (like SQLAlchemy) in a thread pool (`loop.run_in_executor`) or use more low-level db driver: https://github.com/aio-libs/aiopg#example-of-sqlalchemy-optional-integration https://github.com/aio-libs/aiopg#example-of-sqlalchemy-opti...

deleted 11y ago
[deleted]
sandGorgon 11y ago
psycogreen is one such attempt with gevent - it works pretty well actually. that actually illustrates the confusion I'm having - gevent+py2.7 is actually working with all the major frameworks and giving all these performance benefits. In fact if you look closely at the benchmark code (https://github.com/klen/py-frameworks-bench/blob/develop/frameworks/flask/requirements.txt https://github.com/klen/py-frameworks-bench/blob/develop/fra...), the comparison is not against flask+gevent+psycogreen which may change the numbers. https://pypi.python.org/pypi/psycogreen/1.0 https://pypi.python.org/pypi/psycogreen/1.0
eeZi 11y ago
The RethinkDB Python driver works exceptionally well with asyncio.
e12e 11y ago
The asyncio example/benchmark snippet I linked above uses peewee-async: https://peewee-async.readthedocs.org https://peewee-async.readthedocs.org

anebg 11y ago

Pulsar[1] and pulsar-odm seem to be the python equivalent of akka-http. (Actor based concurrency and ORM[2]) [1] http://pythonhosted.org/pulsar/ http://pythonhosted.org/pulsar/ [2] https://pypi.python.org/pypi/pulsar-odm https://pypi.python.org/pypi/pulsar-odm

aldanor 11y ago

Tornado added support for that recently, I believe