python-sockets | 易学教程

How do i properly install flask-socketIO?

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问题 I have installed multiple times Flask-socketio on my mac, closely reading the instructions and installing the requirements (eventlet/gevent). Athough when i run my simple code to test, it either says that i have not imported the modules or show nothing until i open index.html in my browser where it then displays : The client is using an unsupported version of the Socket.IO or Engine.IO protocols (further occurrences of this error will be logged with level INFO) Here is my app.py code: from

How do i properly install flask-socketIO?

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How to write an infinite loop for receiving UDP data?

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问题 I'm trying to make an app that receives UDP data and shows the data in a list view using python (PyQt5). When I start the receiver, the app gets stuck and does not respond. How can I fix this? See code below. import sys import os import socket from PyQt5.QtGui import * from PyQt5.QtWidgets import * class udpReceiverApp(): app = QApplication (sys.argv) x = 1 ip = "192.168.1.4" port =515 server_start = True sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.bind((ip,port)) def __init_

Python Requests, how to bind to different source ip for each request? [duplicate]

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问题 This question already has an answer here : Requests, bind to an ip (1 answer) Closed 2 years ago . I'm trying to learn some python, and i'm having issues with the logic in what I want to test. Currently my code is written in a way that binding to source_address doesn't change when the process starts import socket import requests real_create_conn = socket.create_connection def set_src_addr(*args): address, timeout = args[0], args[1] source_address = ('201.X.X.1', 0) return real_create_conn

Python client disconnect if server closes connection

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问题 I have server and client code in python in which client sends a request message to server and wait for the response. I have the server code to close the connection when the client doesn't send a proper request. When the server closes the request, the client still is listening forever for the response. Below is the code server.py s = socket.socket(socket.AF_INET,socket.SOCK_STREAM) s.bind((host, port)) s.listen(1) while True: c, addr = s.accept() # Receive request data = c.recv(1024) if data !

Finding Live Nodes on LAN using Python

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问题 I am creating a Messenger which is same as IP Messenger in Python 2.7 and Windows. I want the same functionality as IP Messenger uses in finding the systems running same software over LAN but I am unable to understand the technique. Can someone please help me to solve the problem of Finding the computers IP address or host name running same software over the LAN using Python 2.7 and Sockets Library. Please suggest something which can be implemented on Windows not like Nmap(limited to linux)

python pipe subprocess i/o over socket

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问题 I know there are similar questions out there, but I'm having trouble with this concrete example, and haven't found a good answer. I'm trying to set up a remote backup server for dar, along these lines. I've asked a separate question about doing this by invoking netcat with subprocess.Popen, but I'd prefer to set up the sockets and do all the piping with python if possible. There will be several gigs transferred, so I can't just read all the input first and then pass it on. The problem is that

Broadcasting socket server in python [closed]

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问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . I am building a multiplayer game, so once the server started i want to broadcast server name continuously so that client can know that there are some server is running. I don't want to give IP address and port number to connect to server. can someone help me to broadcast server name. its an app not an web app.

Finding Live Nodes on LAN using Python

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I am creating a Messenger which is same as IP Messenger in Python 2.7 and Windows. I want the same functionality as IP Messenger uses in finding the systems running same software over LAN but I am unable to understand the technique. Can someone please help me to solve the problem of Finding the computers IP address or host name running same software over the LAN using Python 2.7 and Sockets Library. Please suggest something which can be implemented on Windows not like Nmap(limited to linux) and it will be very helpful if solution is Python's Socket Library code. " net view " command of Windows

python socket GET

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From the other posts on stack overflow this should be working import socket s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect(("www.cnn.com" , 80)) s.sendall("GET / HTTP/1.1\r\n") print s.recv(4096) s.close but for some reason it just hangs (at recv ) and never prints. I know that a request to www.cnn.com will chunk it's data but I should at least read something from recv , right? p.s. I know this isn't the best way to do it and that there are library like httplib and urllib2 out there, but I can't use those for this project (it's for school). I have to use the socket library You