Asyncore and Generators

from YieldAsyncore import *

class httpClient(YieldDispatcherWithSend):

    def __init__(self, host, port, path):
        self.host = host
        self.path = path
        YieldDispatcherWithSend.__init__(self, host, port)

    def handle(self):

        # send request
        self.send(
            "GET %s HTTP/1.0\r\nHost: %s\r\n\r\n" % (self.path, self.host)
            )
        yield OK

        # look for response header
        while self.data:
            try:
                i = string.index(self.data, "\r\n\r\n")
            except ValueError:
                yield MORE # need more data
            else:
                print self, repr(self.data[:i])
                self.data = self.data[i+4:]
                if not self.data:
                    yield OK
                break

        # process response body
        while self.data:
            print self, len(self.data)
            yield OK

        print self, "done"