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I changed the example from the repository description to provide infinite query retries until a successful answer:
import asyncio
import aiodns
loop = asyncio.SelectorEventLoop()
resolver = aiodns.DNSResolver(loop=loop)
async def query(name, query_type):
while True:
try:
return await resolver.query(name, query_type)
except aiodns.error.DNSError as err:
print(err)
await asyncio.sleep(1)
coro = query('google.com', 'A')
result = loop.run_until_complete(coro)
print(result)
loop.close()Let's assume my Windows machine has some network problems before the script run - I mockup this with the following cmd command:
netsh wlan add filter permission=block ssid="<Wi-Fi ssid>" networktype=infrastructureWhen the script starts it constantly outputs (11, 'Could not contact DNS servers') as expected. But even if the network connection is re-established (netsh wlan delete filter <...>) during the script run, it still outputs the error. I can get the answer only if I stop and rerun the script.
I have also opened the issue on pycares tracker - saghul/pycares#203 .
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