如何在特定单元格 pyqt4 中添加列表

我有一个场景，我有一个表格，我想在我单击的特定单元格下显示一个列表小部件。我正在单击第一列中的单元格，并且只想单击第一个单元格。（单击单元格在这里实现）。唯一的问题是现在如何在单元格下显示列表。？！？！？！

初始视图

最终的

我的表格代码是：-

from untitled import *
from PyQt4 import QtGui # Import the PyQt4 module we'll need
import sys # We need sys so that we can pass argv to QApplication
import os

from PyQt4.QtGui import *
from PyQt4.QtCore import *

from PyQt4 import QtGui, QtCore



class MainWindow(QMainWindow,Ui_MainWindow):
    def __init__(self, parent=None):
        QMainWindow.__init__(self, parent)
        self.setupUi(self)
        self.tableWidget.clicked.connect(self.hello)

    def hello(self,item):
        #print(item.column())
        if item.column()==0 :
            print("success")
            #I want to add this List at this cell of table
            itemN = QtGui.QListWidget()
            #hlayout = QtGui.QHBoxLayout()
            #hlayout.addWidget(itemN)
            #self.setCentralWidget(itemN)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    w = MainWindow()
    w.show()
    sys.exit(app.exec_())

任何帮助，将不胜感激。谢谢

我的 untitled.py 代码在这里，它在窗口中生成一个表格

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'untitled.ui'
#
# Created by: PyQt4 UI code generator 4.11.4
#
# WARNING! All changes made in this file will be lost!

from PyQt4 import QtCore, QtGui

try:
    _fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
    def _fromUtf8(s):
        return s

try:
    _encoding = QtGui.QApplication.UnicodeUTF8
    def _translate(context, text, disambig):
        return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
    def _translate(context, text, disambig):
        return QtGui.QApplication.translate(context, text, disambig)

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName(_fromUtf8("MainWindow"))
        MainWindow.resize(800, 600)
        self.centralwidget = QtGui.QWidget(MainWindow)
        self.centralwidget.setObjectName(_fromUtf8("centralwidget"))
        self.gridLayout = QtGui.QGridLayout(self.centralwidget)
        self.gridLayout.setObjectName(_fromUtf8("gridLayout"))
        self.tableWidget = QtGui.QTableWidget(self.centralwidget)
        self.tableWidget.setObjectName(_fromUtf8("tableWidget"))
        self.tableWidget.setColumnCount(4)
        self.tableWidget.setRowCount(13)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(0, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(1, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(2, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(3, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(4, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(5, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(6, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(7, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(8, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(9, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(10, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(11, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(12, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setHorizontalHeaderItem(0, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setHorizontalHeaderItem(1, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setHorizontalHeaderItem(2, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setHorizontalHeaderItem(3, item)
        self.gridLayout.addWidget(self.tableWidget, 0, 0, 1, 1)
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtGui.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 31))
        self.menubar.setObjectName(_fromUtf8("menubar"))
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtGui.QStatusBar(MainWindow)
        self.statusbar.setObjectName(_fromUtf8("statusbar"))
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow", None))
        item = self.tableWidget.verticalHeaderItem(0)
        item.setText(_translate("MainWindow", "New Row", None))
        item = self.tableWidget.verticalHeaderItem(1)
        item.setText(_translate("MainWindow", "New Row", None))
        item = self.tableWidget.verticalHeaderItem(2)
        item.setText(_translate("MainWindow", "New Row", None))
        item = self.tableWidget.verticalHeaderItem(3)
        item.setText(_translate("MainWindow", "New Row", None))
        item = self.tableWidget.verticalHeaderItem(4)
        item.setText(_translate("MainWindow", "New Row", None))
        item = self.tableWidget.verticalHeaderItem(5)
        item.setText(_translate("MainWindow", "New Row", None))
        item = self.tableWidget.verticalHeaderItem(6)
        item.setText(_translate("MainWindow", "New Row", None))
        item = self.tableWidget.verticalHeaderItem(7)
        item.setText(_translate("MainWindow", "New Row", None))
        item = self.tableWidget.verticalHeaderItem(8)
        item.setText(_translate("MainWindow", "New Row", None))
        item = self.tableWidget.verticalHeaderItem(9)
        item.setText(_translate("MainWindow", "New Row", None))
        item = self.tableWidget.verticalHeaderItem(10)
        item.setText(_translate("MainWindow", "New Row", None))
        item = self.tableWidget.verticalHeaderItem(11)
        item.setText(_translate("MainWindow", "New Row", None))
        item = self.tableWidget.verticalHeaderItem(12)
        item.setText(_translate("MainWindow", "New Row", None))
        item = self.tableWidget.horizontalHeaderItem(0)
        item.setText(_translate("MainWindow", "a", None))
        item = self.tableWidget.horizontalHeaderItem(1)
        item.setText(_translate("MainWindow", "b", None))
        item = self.tableWidget.horizontalHeaderItem(2)
        item.setText(_translate("MainWindow", "New Column", None))
        item = self.tableWidget.horizontalHeaderItem(3)
        item.setText(_translate("MainWindow", "d", None))


if __name__ == "__main__":
    import sys
    app = QtGui.QApplication(sys.argv)
    MainWindow = QtGui.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())