Getting a random free tcp port in python using sockets

get-free-tcp-port.py

# Getting a random free tcp port in python using sockets

def get_free_tcp_port():
    tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    tcp.bind(('', 0))
    addr, port = tcp.getsockname()
    tcp.close()
    return port


def get_free_tcp_address():
    tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    tcp.bind(('', 0))
    host, port = tcp.getsockname()
    tcp.close()
    return 'tcp://{host}:{port}'.format(**locals())

more modern and pythonic:

import socket
from contextlib import closing


def get_local_ip() -> str:
    with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as s:
        s.connect(("8.8.8.8", 53))
        return s.getsockname()[0]