from threading import Thread, activeCount import socket import os def test_port(dst,port):     os.system('title '+str(port))     cli_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)     try:         indicator = cli_sock.connect_ex((dst, port))         if indicator == 0:             print(port)         cli_sock.close()     except:         pass if __name__=='__main__':     dst = '192.168.0.22'     i = 0     while i < 65536:         if activeCount() <= 200:             Thread(target = test_port, args = (dst, i)).start()             i = i + 1     while True:         if activeCount() == 2:             break     input('Finished scanning.')