11.25.1 asyncore Example basic HTTP client

As a basic example, below is a very basic HTTP client that uses the dispatcher class to implement its socket handling:

class http_client(asyncore.dispatcher):
    def __init__(self, host,path):
        asyncore.dispatcher.__init__(self)
        self.path = path
        self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
        self.connect( (host, 80) )
        self.buffer = 'GET %s HTTP/1.0\r\n\r\n' % self.path
        
    def handle_connect(self):
        pass
        
    def handle_read(self):
        data = self.recv(8192)
        print data
        
    def writable(self):
        return (len(self.buffer) > 0)
    
    def handle_write(self):
        sent = self.send(self.buffer)
        self.buffer = self.buffer[sent:]

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