port occupation demo

port.py

import socket

HOST = '127.0.0.1'
try:
    s1 = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s1.bind((HOST, 13748))

    s2 = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s2.bind((HOST, 15428))

    s3 = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s3.bind((HOST, 27382))

    s4 = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s4.bind((HOST, 36874))

    s5 = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s5.bind((HOST, 45242))
except socket.error as msg:
    print msg

input('123')