micropython/tests/net_hosted/accept_timeout.py

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# test that socket.accept() on a socket with timeout raises ETIMEDOUT
try:
import usocket as socket
except:
import socket
try:
socket.socket.settimeout
except AttributeError:
print('SKIP')
raise SystemExit
s = socket.socket()
s.bind(socket.getaddrinfo('127.0.0.1', 8123)[0][-1])
s.settimeout(1)
s.listen(1)
try:
s.accept()
except OSError as er:
print(er.args[0] in (110, 'timed out')) # 110 is ETIMEDOUT; CPython uses a string
s.close()