human
Solve the following python programming problem given the following code:
def __init__(self, host, port, app) : 
    from wsgiref.simple_server import make_server, WSGIServer, WSGIRequestHandler 
    self.host = host 
    self.port = port 
    class DevServer (WSGIServer) : 
        timeout = 0.2 
class RequestHandler (WSGIRequestHandler) : 
        def address_string(slf) : 
            return '{}:{}'.format (host, port) 
def log_message(self, format, * args) : 
            logger.info ('%s - - [%s] %s', self.client_address [0], self.log_date_time_string (), (format % args)) 
try : 
        self.port = int (port) 
except ValueError : 
        raise ValueError ('Please provide valid port value insted of "{}"'.format (port)) 
self.running = True 
    self.server = make_server (app.host, self.port, app, server_class = DevServer, handler_class = RequestHandler) 
    super (DevServerThread, self).__init__ () 

    
    

    Fix the buggy line: self.server = make_server (app.host, self.port, app, server_class = DevServer, handler_class = RequestHandler)
assistant
#Here is Python program to fix the buggy line: self.

self.server = make_server (self.host, self.port, app, server_class = DevServer, handler_class = RequestHandler)