pyzmq

Could not install pyzmq using apt,pip,pip3,easy_install etc any command

久未见 提交于 2019-12-07 12:11:57
问题 I tried everything but pyzmq package is not installing. It stops while trying wheel. I even reinstalled wheel but no result. I have already installed all basic prereq stuff. I even installed clang and go-lang but nothing works it even shows same error while installing Jupiter notebook too. 回答1: You need to install the dev version of the libcrypt package in Termux: apt install libcrypt-dev This version of the package includes the required crypt.h header file. Trying it out I dug out an old

How do I clear the buffer upon start/exit in ZMQ socket? (to prevent server from connecting with dead clients)

ぃ、小莉子 提交于 2019-12-07 06:58:21
问题 I am using a REQ/REP type socket for ZMQ communication in python. There are multiple clients that attempt to connect to one server. Timeouts have been added in the client script to prevent indefinite wait. The problem is that when the server is not running, and a client attempts to establish connection, it's message gets added to the queue buffer, which should not even exist at this moment ideally. When the script starts running and a new client connects, the previous client's data is taken

0mq: pubsub latency continually growing with messages?

冷暖自知 提交于 2019-12-07 03:46:23
pub.py import zmq import random import sys import time port = "5556" if len(sys.argv) > 1: port = sys.argv[1] int(port) context = zmq.Context() socket = context.socket(zmq.PUB) socket.bind("tcp://*:%s" % port) topic = 10001 while True: msgdata = time.time() socket.send("%d %d" % (topic, msgdata)) print "topic:%d, msg:%.5f" % (topic, msgdata) time.sleep(1) sub.py import sys import zmq import time port = "5556" if len(sys.argv) > 1: port = sys.argv[1] int(port) if len(sys.argv) > 2: port1 = sys.argv[2] int(port1) # Socket to talk to server context = zmq.Context() socket = context.socket(zmq.SUB)

ZeroMQ N to N async pattern in Python

十年热恋 提交于 2019-12-06 15:37:02
N-proxy-N Pub-Sub Similar to the question N to N async pattern in ZeroMQ? , but which unfortunately never received an answer with working code. I'm trying to implement Pub-Sub network as described in the guide: http://zguide.zeromq.org/py:all#The-Dynamic-Discovery-Problem (a small message broker in the style of N-proxy-N). Unfortunately, the guide doesn't provide any code examples. I've tried to implement an Hello World example using PyZMQ, I think I'm close, but I'm facing some errors I don't know how to handle. Sorry for the use of asyncio (I'm more comfortable with this then threads). Code

ImportError: cannot import name constants

夙愿已清 提交于 2019-12-06 09:53:38
问题 I'm trying to run a simple piece of code using pyzmq. I am using Python 2.7 and pyzmq 14.5 $ python --version Python 2.7.6 $ sudo find /usr -name "*pyzmq*" /usr/local/lib/python2.7/dist-packages/pyzmq-14.5.0.egg-info /usr/lib/python2.7/dist-packages/pyzmq-14.0.1.egg-info Following is the code i'm trying to run: import zhelpers context = zmq.Context.instance() server = context.socket(zmq.ROUTER) server.bind("tcp://*:5678") while (1): address, empty, data = server.recv_multipart() print(

Could not install pyzmq using apt,pip,pip3,easy_install etc any command

徘徊边缘 提交于 2019-12-05 22:38:03
I tried everything but pyzmq package is not installing. It stops while trying wheel. I even reinstalled wheel but no result. I have already installed all basic prereq stuff. I even installed clang and go-lang but nothing works it even shows same error while installing Jupiter notebook too. You need to install the dev version of the libcrypt package in Termux: apt install libcrypt-dev This version of the package includes the required crypt.h header file. Trying it out I dug out an old alarm clock/Android tablet I had lying around in order to test this out. I followed the instructions I found in

How do I clear the buffer upon start/exit in ZMQ socket? (to prevent server from connecting with dead clients)

别来无恙 提交于 2019-12-05 15:04:20
I am using a REQ/REP type socket for ZMQ communication in python. There are multiple clients that attempt to connect to one server. Timeouts have been added in the client script to prevent indefinite wait. The problem is that when the server is not running, and a client attempts to establish connection, it's message gets added to the queue buffer, which should not even exist at this moment ideally. When the script starts running and a new client connects, the previous client's data is taken in first by the server. This should not happen. When the server starts, it assumes a client is connected

Cannot import zmq in python (install issue)

旧时模样 提交于 2019-12-05 09:42:46
I can't seem to install pyzmq on my macbook (OSX 10.9.1) First call was to run: sudo pip install pyzmq There was an error that libzmq couldn't be found, and it appeared to try and compile the bundled version: jono@air:~ $ sudo pip install pyzmq Password: Downloading/unpacking pyzmq Downloading pyzmq-14.0.1.tar.gz (867kB): 867kB downloaded Running setup.py egg_info for package pyzmq no previously-included directories found matching 'docs/build' no previously-included directories found matching 'docs/gh-pages' warning: no directories found matching 'bundled/uuid' warning: no previously-included

ZMQ REP, knowing who send the request

不羁的心 提交于 2019-12-05 02:32:56
I m currently using zmq with python. Server is using REP socket. Do I have a way, when recv a message, to know who send it ? If a receive 2 messages, I just need to know if they come from the same user or not, so an uid for example would be enough. It looks like you want to implement async request handling on the server side: you let the server accept requests, process them asynchronously, and send the responses back to clients whenever the response data is available for each request. Now of course: how would you know, after you're done processing a request, which client to send it back to?

Python 3.6 ZeroMQ (PyZMQ) asyncio pub sub Hello World

十年热恋 提交于 2019-12-04 19:22:25
I've just started with ZeroMQ and I'm trying to get a Hello World to work with PyZMQ and asyncio in Python 3.6. I'm trying to de-couple the functionality of a module with the pub/sub code, hence the following class setup: Edit 1 : Minimized example Edit 2 : Included solution, see answer down for how. import asyncio import zmq.asyncio from zmq.asyncio import Context # manages message flow between publishers and subscribers class HelloWorldMessage: def __init__(self, url='127.0.0.1', port='5555'): self.url = "tcp://{}:{}".format(url, port) self.ctx = Context.instance() # activate publishers /