python_socket_read_lines.py

import socket

def netcat(hostname, port):
    """
    Reads lines from a network socket and prints them to standard output.
    Similar to: netcat $HOST $PORT.
    """
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.connect((hostname, port))
    socket_file = s.makefile()
    for line in socket_file:
        print(line.strip())
    s.close()

netcat('localhost', 12345)

# $ echo -en "foo\nbar\nbaz\n"|netcat -l -p 12345
# $ python python_socket_read_lines.py