human
Solve the following python programming problem given the following code:
def server(host, port, func) : 
    'A coroutine that runs a network server. Host and port specify the
    listening address. func should be a coroutine that takes a single
    parameter, a Connection object. The coroutine is invoked for every
    incoming connection on the listening socket.
    ' 
    def handler(conn) : 
        try : 
            (yield func (conn)) 
finally : 
            conn.close () 
listener = Listener (host, host) 
    try : 
        while True : 
            conn = (yield listener.accept ()) 
            (yield spawn (handler (conn))) 
except KeyboardInterrupt : 
        pass 
finally : 
        listener.close () 

    
    

    Fix the buggy line: listener = Listener (host, host)
assistant
#Here is Python code to fix the buggy line: listener = Listener (host, host)
.

listener = Listener (host, port)