title: pyQt5 AttributeError: 'bool' object has no attribute 'txtCustCode'
body: <p>Using QT Designer to design the code. Then using the <code>pyuic5 -x productentryscreen.ui &gt; productentryscreen3.py</code> command to generate python code.
  i am using buttons and textboxes. when a button is pressed i want to display value entered in the QlineEdit box. 
  But i am getting the error " AttributeError: 'bool' object has no attribute"  when the btnCancel is clicked. This is where the error is thrown (i presume) <code>textboxValue = self.txtCustCode.text</code>. i even tried with <code>textboxValue = self.txtCustCode.text()</code>
  Following is the code </p>
  
  <pre><code>   import sqlite3
     from PyQt5 import QtCore, QtGui, QtWidgets
     from PyQt5.QtCore import QObject
     from PyQt5.QtGui import QIcon
     from PyQt5.QtCore import pyqtSlot
     from PyQt5.QtWidgets import QMainWindow, QApplication, QWidget, QPushButton, QAction, QLineEdit, 
     QMessageBox
  
     # Generated Code
      class Ui_MainWindow(object):
      def setupUi(self, MainWindow):
      #def setupUi(self):
          MainWindow.setObjectName("MainWindow")
          MainWindow.resize(800, 600)
          self.centralwidget = QtWidgets.QWidget(MainWindow)
          self.centralwidget.setObjectName("centralwidget")
          self.label = QtWidgets.QLabel(self.centralwidget)
          self.label.setGeometry(QtCore.QRect(30, 130, 160, 16))
          font = QtGui.QFont()
          font.setPointSize(12)
          self.label.setFont(font)
          self.label.setObjectName("label")
          self.label_2 = QtWidgets.QLabel(self.centralwidget)
          self.label_2.setGeometry(QtCore.QRect(30, 160, 130, 16))
          font = QtGui.QFont()
          font.setPointSize(12)
          self.label_2.setFont(font)
          self.label_2.setObjectName("label_2")
          self.label_3 = QtWidgets.QLabel(self.centralwidget)
          self.label_3.setGeometry(QtCore.QRect(30, 190, 120, 16))
          font = QtGui.QFont()
          font.setPointSize(12)
          self.label_3.setFont(font)
          self.label_3.setObjectName("label_3")
          self.label_4 = QtWidgets.QLabel(self.centralwidget)
          self.label_4.setGeometry(QtCore.QRect(30, 220, 180, 16))
          font = QtGui.QFont()
          font.setPointSize(12)
          self.label_4.setFont(font)
          self.label_4.setObjectName("label_4")
          self.label_5 = QtWidgets.QLabel(self.centralwidget)
          self.label_5.setGeometry(QtCore.QRect(30, 240, 170, 31))
          font = QtGui.QFont()
          font.setPointSize(12)
          self.label_5.setFont(font)
          self.label_5.setObjectName("label_5")
          self.label_6 = QtWidgets.QLabel(self.centralwidget)
          self.label_6.setGeometry(QtCore.QRect(80, 30, 481, 31))
          font = QtGui.QFont()
          font.setPointSize(18)
          font.setBold(True)
          font.setWeight(75)
          self.label_6.setFont(font)
          self.label_6.setObjectName("label_6")
          self.txtHMI = QtWidgets.QLineEdit(self.centralwidget)
          self.txtHMI.setGeometry(QtCore.QRect(230, 130, 211, 20))
          self.txtHMI.setObjectName("txtHMI")
          self.txtCustCode = QLineEdit(self.centralwidget)
          self.txtCustCode.setGeometry(QtCore.QRect(230, 160, 211, 20))
          self.txtCustCode.setObjectName("txtCustCode")
          self.txtProdCode = QtWidgets.QLineEdit(self.centralwidget)
          self.txtProdCode.setGeometry(QtCore.QRect(230, 190, 211, 20))
          self.txtProdCode.setObjectName("txtProdCode")
          self.txtCustPartNo = QtWidgets.QLineEdit(self.centralwidget)
          self.txtCustPartNo.setGeometry(QtCore.QRect(230, 220, 211, 20))
          self.txtCustPartNo.setObjectName("txtCustPartNo")
          self.txtLampName = QtWidgets.QLineEdit(self.centralwidget)
          self.txtLampName.setGeometry(QtCore.QRect(230, 250, 211, 20))
          self.txtLampName.setObjectName("txtLampName")
          self.btnSave = QtWidgets.QPushButton(self.centralwidget)
          self.btnSave.setGeometry(QtCore.QRect(130, 280, 131, 41))
          self.btnSave.setObjectName("btnSave")
          self.btnSave.clicked.connect(btnSave_click)
  
          self.btnCancel = QtWidgets.QPushButton(self.centralwidget)
          self.btnCancel.setGeometry(QtCore.QRect(330, 280, 131, 41))
          self.btnCancel.setObjectName("btnCancel")
          self.btnCancel.clicked.connect(btnCancel_click)
          MainWindow.setCentralWidget(self.centralwidget)
          self.menubar = QtWidgets.QMenuBar(MainWindow)
          self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 21))
          self.menubar.setObjectName("menubar")
          MainWindow.setMenuBar(self.menubar)
          self.statusbar = QtWidgets.QStatusBar(MainWindow)
          self.statusbar.setObjectName("statusbar")
          MainWindow.setStatusBar(self.statusbar)
          self.retranslateUi(MainWindow)
          QtCore.QMetaObject.connectSlotsByName(MainWindow)
  
          def retranslateUi(self, MainWindow):
            _translate = QtCore.QCoreApplication.translate
            MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
            self.label.setText(_translate("MainWindow", "Product as in HMI"))
            self.label_2.setText(_translate("MainWindow", "Customer Code"))
            self.label_3.setText(_translate("MainWindow", "Product Code"))
            self.label_4.setText(_translate("MainWindow", "Customer Part Number"))
            self.label_5.setText(_translate("MainWindow", "Lamp Name &amp; Type"))
            self.label_6.setText(_translate("MainWindow", "Products Data Entry / Update Screen"))
            self.btnSave.setText(_translate("MainWindow", "SAVE"))
            self.btnCancel.setText(_translate("MainWindow", "Cancel"))
  
      # End Generated Code
  
      @pyqtSlot() # Signals buttons
  
      def btnCancel_click(self):
      textboxValue = "Dummy"
      textboxValue = self.txtCustCode.text
      #QMessageBox.question(self, 'Message - pythonspot.com', "You typed: " + textboxValue, QMessageBox.Ok, QMessageBox.Ok)
      print (textboxValue)
      cancelFunction()
  def btnSave_click(self):
      print ("Save Clicked")
      insertFunction()
  
  # Functions for signals
  def insertFunction():
      print ("Save Clicked")
  
  def cancelFunction():
      print ("Cancel  Clicked")
  if __name__ == "__main__":
      import sys
      app = QApplication(sys.argv)
      MainWindow = QtWidgets.QMainWindow()
      ui = Ui_MainWindow()
      ui.setupUi(MainWindow)
      MainWindow.show()
      sys.exit(app.exec_())
  </code></pre>