pyqt - Multiple requests using QNetworkAccessManager qt -

i send multiple post requests using single qnetworkaccessmanager, works once. second , further requests got empty reply. know can use multiple instances of manager, read, it's architectural flaw. have found this: using qnetworkaccessmanager multiple times, not understand eventual solution. here's code:

class networker(qobject):      gotresponse = pyqtsignal(str)      def proc(self, reply):         s = bytes(reply.readall()).decode('utf-8')         self.gotresponse.emit(s)       def __init__(self, parent=none):         super(networker, self).__init__(parent)         self.manager = qnetworkaccessmanager()        def send(self):         req = qnetworkrequest(qurl("http://127.0.0.1:8000/"))         req.setheader(qnetworkrequest.contenttypeheader, "text/json;charset=utf-8")          data = qbytearray('{"id":1}')          self.manager.finished.connect(self.proc)         self.manager.post(req, data) 

main (imports excluded):

def main():      app = qtwidgets.qapplication(sys.argv)      n = networker(app)     w = qtwidgets.qwidget()       w.setwindowtitle("main")      layout = qboxlayout(qboxlayout.lefttoright, w)      l1 = qtextedit("result", w)     l1.resize(300, 600)     n.gotresponse.connect(l1.settext)     layout.addwidget(l1)     w.show()      l2 = qtextedit("idle", w)     l2.resize(250, 600)      layout.addwidget(l2)     w.resize(500, 600)      btn = qpushbutton("send", w)     layout.addwidget(btn)        btn.clicked.connect(n.send)              w.show()          sys.exit(app.exec_())   if __name__ == '__main__':     main()