help please with this error.

[jettam]

I am using maya2017.  I am trying to get a blank GUI up, but I get this error.  help on this would be much appreciated. 

# Error: global name 'Long' is not defined

# Traceback (most recent call last):

#   File "<maya console>", line 1, in <module>

#   File "E:\ProfessionalDevelopment\python\Introduction to Python Scripting in Maya\cgcircuitPython\wk6\geomGenerator.py", line 12, in getMayaWindow

#     return wrapInstance(Long(ptr), QtGui.QMainWindow)

# NameError: global name 'Long' is not defined # 

from PySide2 import QtWidgets, QtCore, QtUiTools, QtGui
from shiboken2 import wrapInstance
import maya.cmds as mc
import maya.OpenMayaUI as omui

def getMayaWindow():
    ''' pointer to the maya main window '''
    ptr = omui.MQtUtil.mainWindow()
    if ptr:
        return wrapInstance(Long(ptr), QtGui.QMainWindow)
       
def run():
    ''' builds our UI '''
    global win
    win = GeometryGenerator(parent=getMayaWindow())
    win.show()
   
class GeometryGenerator(QtWidgets.QDialog):
   
    def __init__(self,parent=None):
        super(GeometryGenerator,self).__init__(parent)

[Simon Anderson]

looks like your Long is meant to be long

Take a look at the Qt example here, it is quiet helpful.

http://help.autodesk.com/view/MAYAUL/2017/ENU/?guid=__files_GUID_66ADA1FF_3E0F_469C_84C7_74CEB36D42EC_htm