====== Test Port ======

**General Information**

Function to check a network port to see if it is open on a host.

**Checklist**
  * import socket

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====== Usage ======

Call this function, checking server1 for tcp/22 (ssh):
<code python>
if test_port(server1,22):
  do ssh stuff
else:
  print("Server not listening on tcp/22!")
</code>

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====== The Code ======

<code python>
import socket

def test_port(host,port):
	# Test a host and port pair to see if a connection can be made.
	host_port = (host,port)
	try:
		socket_test = socket.create_connection(host_port,timeout=5)
		socket_test.close()
		# Port is open, return 1 (true)
		return 1
	except Exception:
		# Port is not open, return 0 (false)
		return 0
</code>

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