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ZeroMQ integration with asyncio.

Project Description

asyncio (PEP 3156) support for ZeroMQ.

Documentation

See http://aiozmq.readthedocs.org

Simple high-level client-server RPC example:

import asyncio
import aiozmq.rpc


class ServerHandler(aiozmq.rpc.AttrHandler):

    @aiozmq.rpc.method
    def remote_func(self, a:int, b:int) -> int:
        return a + b


@asyncio.coroutine
def go():
    server = yield from aiozmq.rpc.serve_rpc(
        ServerHandler(), bind='tcp://127.0.0.1:5555')
    client = yield from aiozmq.rpc.connect_rpc(
        connect='tcp://127.0.0.1:5555')

    ret = yield from client.call.remote_func(1, 2)
    assert 3 == ret

    server.close()
    client.close()

asyncio.get_event_loop().run_until_complete(go())

Low-level request-reply example:

import asyncio
import aiozmq
import zmq

@asyncio.coroutine
def go():
    router = yield from aiozmq.create_zmq_stream(
        zmq.ROUTER,
        bind='tcp://127.0.0.1:*')

    addr = list(router.transport.bindings())[0]
    dealer = yield from aiozmq.create_zmq_stream(
        zmq.DEALER,
        connect=addr)

    for i in range(10):
        msg = (b'data', b'ask', str(i).encode('utf-8'))
        dealer.write(msg)
        data = yield from router.read()
        router.write(data)
        answer = yield from dealer.read()
        print(answer)
    dealer.close()
    router.close()

asyncio.get_event_loop().run_until_complete(go())

Requirements

License

aiozmq is offered under the BSD license.

CHANGES

0.7.1 (2015-09-20)

  • Fix monitoring events implementation
  • Make the library compatible with Python 3.5

0.7.0 (2015-07-31)

  • Implement monitoring ZMQ events #50
  • Do deeper lookup for inhereted classes #54
  • Relax endpont check #56
  • Implement monitoring events for stream api #52

0.6.1 (2015-05-19)

  • Dynamically get list of pyzmq socket types

0.6.0 (2015-02-14)

  • Process asyncio specific exceptions as builtins.
  • Add repr(exception) to rpc server call logs if any
  • Add transport.get_write_buffer_limits() method
  • Add __repr__ to transport
  • Add zmq_type to tr.get_extra_info()
  • Add zmq streams

0.5.2 (2014-10-09)

  • Poll events after sending zmq message for eventless transport

0.5.1 (2014-09-27)

  • Fix loopless transport implementation.

0.5.0 (2014-08-23)

  • Support zmq devices in aiozmq.rpc.serve_rpc()
  • Add loopless 0MQ transport

0.4.1 (2014-07-03)

  • Add exclude_log_exceptions parameter to rpc servers.

0.4.0 (2014-05-28)

  • Implement pause_reading/resume_reading methods in ZmqTransport.

0.3.0 (2014-05-17)

  • Add limited support for Windows.
  • Fix unstable test execution, change ZmqEventLoop to use global shared zmq.Context by default.
  • Process cancellation on rpc servers and clients.

0.2.0 (2014-04-18)

  • msg in msg_received now is a list, not tuple
  • Allow to send empty msg by trsansport.write()
  • Add benchmarks
  • Derive ServiceClosedError from aiozmq.rpc.Error, not Exception
  • Implement logging from remote calls at server side (log_exceptions parameter).
  • Optimize byte counting in ZmqTransport.

0.1.3 (2014-04-10)

  • Function default values are not passed to an annotaion. Add check for libzmq version (should be >= 3.0)

0.1.2 (2014-04-01)

  • Function default values are not passed to an annotaion.

0.1.1 (2014-03-31)

  • Rename plural module names to single ones.

0.1.0 (2014-03-30)

  • Implement ZmqEventLoop with create_zmq_connection method which operates on zmq transport and protocol.
  • Implement ZmqEventLoopPolicy.
  • Introduce ZmqTransport and ZmqProtocol.
  • Implement zmq.rpc with RPC, PUSHPULL and PUBSUB protocols.
Release History

Release History

This version
History Node

0.7.1

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0.7.0

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0.6.1

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0.6.0

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0.5.3

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0.5.2

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0.5.1

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0.5.0

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0.4.1

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0.4.0

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0.3.0

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0.2.0

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0.1.3

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0.1.2

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0.1.1

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0.1.0

History Node

0.1.0b6

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