twisted version

import time
from twisted.web import server, resource
from twisted.internet import reactor
from twisted.internet.protocol import ProcessProtocol
from twisted.internet.defer import Deferred


class MyProcessProtocol(ProcessProtocol):

    data = ""

    def connectionMade(self):
        self.d = Deferred()

    def outReceived(self, data):
        self.data += data

    def processEnded(self, reason):
        self.d.callback(self.data)


class Simple(resource.Resource):
    isLeaf = True

    def render_GET(self, request):
        def _on_end(data, begin, request):
            end = time.time()
            request.write(data)
            request.write(str((begin, end, end-begin)))
            request.finish()
        pp = MyProcessProtocol()
        begin = time.time()
        reactor.spawnProcess(pp, "sh", ["sh", "-c", "/sbin/ping -c 11 baidu.com"])
        pp.d.addBoth(_on_end, begin, request)
        return server.NOT_DONE_YET

site = server.Site(Simple())
reactor.listenTCP(8080, site)
reactor.run()