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Async possible?
QuantumCodes (26)

if i want to ping many websites at once (using requests library) it takes a long time.. is it possible that it first pings web1, then withoutnwaiting for output, pings 2 then waits till both gets pinged?

Current code: how do i change it?

import requests, sleep
websites = ["web1","web2"]
while True:
  for i in websites:
      print('timeout error')

Takes approx 0.5 to 0.8 or even 1 second to complete 1 loop of while true excluding time.sleep

Answered by InvisibleOne (3224) [earned 5 cycles]
View Answer
InvisibleOne (3224)

I would try threading, that way you can run a whole bunch of threads.

import threading
import requests
import time # not sleep

def ping(website):
    requests.get(website, timeout=1)
    print(f"Timeout error with website {website}")

while True:
  for i in websites:
    thread = threading.Thread(target=ping, args=[i])

This way it won't wait for that thread to be done, it will just move on to creating another thread without waiting for that ping to be made.

QuantumCodes (26)

Is threading better thatn asyncio? @InvisibleOne

QuantumCodes (26)

@InvisibleOne wait..... thread.join() waits. Is there anything wrong?

InvisibleOne (3224)

I didn't mean to put that in there, this code was adapted from another program I wrote and I just left that there. @QuantumCodes

InvisibleOne (3224)

I haven't really used asyncio so I don't know which one is better @QuantumCodes

Coder100 (18915)

You can use threading, like this:

from threading import Thread

websites = []

def ping_website(link):
  # add code to ping website

for i in websites:
  t = Thread(target=ping_website, args=(link))

also never ever ping a website every half second -- that's on the verge of making the website crash. Make it do every 5 minutes.

QuantumCodes (26)

@Coder100 oh.. mat1 pinger pings every 5 secs, so i didnt think this will happen xD thx!

QuestionableNS (1)

import asyncio
async def main():
while True:
print('Hello ...')
await asyncio.sleep(1)
print('... World!')