Pick unused port on OS. Race condition might occur after close(). - Cacher Snippet

9/27/2016 - 4:30 AM

Pick unused port on OS. Race condition might occur after close().

Pick unused port on OS. Race condition might occur after close().

pick_unused_port.py

import socket

def pick_unused():
  s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  s.bind(('localhost', 0))
  addr, port = s.getsockname()
  s.close()
  return port