PyQt and Python Sop

import hou
import sys
sys.path.append("C:\Users\Administrator\Documents\houdini11.0\script")#저장된 패스 파일위치
from PyQt4 import QtCore, QtGui
import pyqt_houdini #후디니 파이큐티 쿡북
from test_ui import Ui_Form

class MyForm(QtGui.QMainWindow):
    def __init__(self, parent=None):
        QtGui.QWidget.__init__(self, parent)
        self.ui = Ui_Form()
        self.ui.setupUi(self)
        QtCore.QObject.connect(self.ui.pushButton,QtCore.SIGNAL("clicked()"),self.make)
   
    def make(self):
        hou.node("obj/geo1").createNode("grid")
   
   

def click():
    app = QtGui.QApplication(["houdini"])
    myapp = MyForm()
    myapp.show()
    pyqt_houdini.exec_(app,myapp)
click()