title: How to fix attribute Error for module in PyQt5
body: <p>Hi :) please can someone assist me. I have to do an assignment where i add a LCDNumber widget to the dialog in Qtdesigner, convery the ui file to py and then create a separate script to import the code to invoke the UI design and display, it also must include a timer to keep updating the LCD display.
  This is the Error i get</p>
  
  <pre><code>Traceback (most recent call last):
  File "C:\PythonPrograms\showtime.pyw", line 4, in &lt;module&gt;
  class MyForm(QtGui.QDialog):
  AttributeError: 'module' object has no attribute 'QDialog'
  </code></pre>
  
  <hr>
  
  <pre><code>from PyQt5 import QtCore, QtGui, QtWidgets
  
  class Ui_Dialog(object):
  def setupUi(self, Dialog):
      Dialog.setObjectName("Dialog")
      Dialog.resize(400, 300)
      self.lcdNumber = QtWidgets.QLCDNumber(Dialog)
      self.lcdNumber.setGeometry(QtCore.QRect(70, 20, 241, 151))
      self.lcdNumber.setObjectName("lcdNumber")
  
      self.retranslateUi(Dialog)
      QtCore.QMetaObject.connectSlotsByName(Dialog)
  
  def retranslateUi(self, Dialog):
      _translate = QtCore.QCoreApplication.translate
      Dialog.setWindowTitle(_translate("Dialog", "Dialog"))
  
  
  if __name__ == "__main__":
  import sys
  app = QtWidgets.QApplication(sys.argv)
  Dialog = QtWidgets.QDialog()
  ui = Ui_Dialog()
  ui.setupUi(Dialog)
  Dialog.show()
  sys.exit(app.exec_())
  </code></pre>
  
  <p>Next is file showtime.pyw which is suppose to import the code from disptime.py to invoke the UI design and display</p>
  
  <pre><code>import sys
  from disptime import *
  
  class MyForm(QtGui.QDialog):
  def __init__(self, parent=None):
      QtGui.__init__(self, parent)
      self.ui =Ui_Dialog()
      self.ui.setupUi(self)
      timer = QtCore.QTimer(self)
      timer.timeout.connect(self.showlcd)
      timer.start(1000)
      self.showlcd()
  
  def showlcd(self):
      time = QtCore.QTime.currentTime()
      text = time.toString('hh:mm')
      self.ui.lcdNumber.display(text)
  
  if __name__ == "__main__":
  app = QtWidgets.QApplication(sys.argv)
  myapp = MyForm()
  myapp.show()
  sys.exit(app.exec_())
  </code></pre>