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Code: Alles auswählen

# Echo client program
import socket
import sys

HOST = '192.168.20.103'    # The remote host
PORT = 6001                # The same port as used by the server
s = None
for res in socket.getaddrinfo(HOST, PORT, socket.AF_UNSPEC, socket.SOCK_STREAM):
    af, socktype, proto, canonname, sa = res
    try:
        s = socket.socket(af, socktype, proto)
    except socket.error as msg:
        s = None
        continue
    try:
        s.connect(sa)
    except socket.error as msg:
        s.close()
        s = None
        continue
    break
if s is None:
    print 'could not open socket'
    sys.exit(1)
data = s.recv(1024)
s.close()
print 'Received', repr(data)

Code: Alles auswählen

from __future__ import print_function
import socket
import sys
from contextlib import closing

HOST = '192.168.20.103'  # The remote host.
PORT = 6001  # The same port as used by the server.


class NoSocket(Exception):
    pass


def get_connected_socket(host, port):
    for family, socktype, proto, _, sockaddress in socket.getaddrinfo(
        host, port, socket.AF_UNSPEC, socket.SOCK_STREAM
    ):
        try:
            sock = socket.socket(family, socktype, proto)
        except socket.error:
            pass
        else:
            try:
                sock.connect(sockaddress)
            except socket.error:
                sock.close()
            else:
                return sock
    raise NoSocket


def main():
    try:
        with closing(get_connected_socket(HOST, PORT)) as sock:
            data = sock.recv(1024)

        print('Received:', repr(data))
    except NoSocket:
        print('could not open socket')
        sys.exit(1)


if __name__ == '__main__':
    main()