linux - Verify if a local port is available in python -

i have project spawn subprocesses, again take port number bind to. port number assigned python script, take random port between 49152 , 65535.

i want verify if port available , not used other tool on local system (*nix).

from another question have snippet:

import socket; sock = socket.socket(socket.af_inet, socket.sock_stream) result = sock.connect_ex(('127.0.0.1',80)) if result == 0:    print "port open" else:    print "port not open" 

could use in case? not open port , not close further use?

simply create temporary socket , try bind port see if it's available. close socket after validating port available.

def tryport(port):     sock = socket.socket(socket.af_inet, socket.sock_stream)     result = false     try:         sock.bind(("0.0.0.0", port))         result = true     except:         print("port in use")     sock.close()     return result