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
Python 3.3+
pyzmq 13.1+
asyncio or Python 3.4+
optional submodule aiozmq.rpc requires msgpack-python 0.4+
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.
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