urlParseResult = urlparse(url)

        host = urlParseResult.hostname

        path = urlParseResult.path

        conn = httplib.HTTPConnection(host)

        base64string = base64.encodestring('%s:%s' % (username, password)).replace('\n', '')

        conn.putheader("Authorization", "Basic %s" % base64string)

        conn.endheaders()  

        conn.request("GET", path)

        try:

            with open(localLogFile, "wb") as code1:

                with contextlib.closing(conn) as conn:

                    response = conn.getresponse()

                    while True:

                        data = response.read(defaultBlock)

                        if not len(data):

                            print str(self.logDate)+"-"+localLogFileName+"获取成功！"

                            return

                        else:

                            code1.write(data)

        except urllib2.HTTPError as httpError:

            if httpError.code == httplib.NOT_FOUND:

                print url+"is not found,404"

            else:

                raise

        defaultBlock = 2048

        base64string = base64.encodestring('%s:%s' % (username, password)).replace('\n', '')

        conn = urllib2.Request(url)

        conn.add_header("Authorization", "Basic %s" % base64string)

        try:

            with open(localLogFile, "wb") as code1:

                with contextlib.closing(urllib2.urlopen(conn)) as result:

                    while True:

                        data = result.read(defaultBlock)

                        if not len(data):

                            print str(self.logDate)+"-"+localLogFileName+"获取成功！"

                            return

                        else:

                            code1.write(data)

        except urllib2.HTTPError as httpError:

            if httpError.code == httplib.NOT_FOUND:

                print url+"is not found,404"

            else:

                raise

from timeit import Timer

 t1 = Timer('doGetLogByConfig()', 'from __main__ import doGetLogByConfig')

print t1.timeit(1)

httplib时间：

45.4764687239

urllib时间：

64.3462849881