python check socket receive within other loop — non-blocking? Question: I know the code to wait for socket in a loop like this. s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) s.bind((host, port)) data, addr = s.recvfrom(1024) data = data.decode(‘utf-8’) print("Message from: " + str(addr)) print("From connected user: " + data) com = data data = data.upper() data = …
Python non-blocking socket Question: Hi I am trying to create a very simple peer-to-peer chatting program in python. The first user can runs the server.py program below to bind to a socket. import sys import socket import select import threading # Bind to socket s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) s.bind((‘127.0.0.1’, 11111)) s.listen() def …
PyAudio Responsive Recording Question: I’ve seen the recording tutorial on the PyAudio website for recording a fixed length recording, but I was wondering how I could do the same with a non-fixed recording? Bascially, I want to create buttons to start and end the recording but I haven’t found anything on the matter. Any ideas, …
PySerial non-blocking read loop Question: I am reading serial data like this: connected = False port = ‘COM4’ baud = 9600 ser = serial.Serial(port, baud, timeout=0) while not connected: #serin = ser.read() connected = True while True: print(“test”) reading = ser.readline().decode() The problem is that it prevents anything else from executing including bottle py web …
What does Python's socket.recv() return for non-blocking sockets if no data is received until a timeout occurs? Question: Basically, I’ve read in several places that socket.recv() will return whatever it can read, or an empty string signalling that the other side has shut down (the official docs don’t even mention what it returns when the …
Write PHP non blocking applications Question: I want to write non-blocking applications. I use apache2, but I was reading about nginx and its advantage with respect to apache processes. I am considering changing out apache for nginx. My question is, is it possible to write non-blocking web applications with php and nginx?. Or is a …
Can SQLAlchemy be configured to be non-blocking? Question: I’m under the impression that database calls through SQLAlchemy will block and aren’t suitable for use in anything other than synchronous code. Am I correct (I hope I’m not!) or is there a way to configure it to be non-blocking? Asked By: Matty || Source Answers: Have …
using Flask and Tornado together? Question: I am a big fan of Flask – in part because it is simple and in part because has a lot of extensions. However, Flask is meant to be used in a WSGI environment, and WSGI is not a non-blocking, so (I believe) it doesn’t scale as well as …
SSH module for python Question: I have to do a job (using my web server) on a remote machine that takes about 10 minutes. I have used pxssh module in python for the same but it gives me “timeout error”(non blocking). Now, I am using paramiko but that comes back as soon as it gives …
Python socket.accept nonblocking? Question: Is there a way I can use python’s socket.accept() in a non-blocking way that simply runs it and lets me just check if it got any new connections? I really don’t want to use threading. Thanks. Asked By: pajm || Source Answers: You can invoke the setblocking(0) method on the Socket …
