old_contents: #!/usr/bin/python
  # -*- coding: utf-8 -*-
  
  """ Customer Segmentation System
  --- Undergraduate Thesis Project ---
  
  Riky Lutfi Hamzah
  Informatics Engineering 
  Indonesia Computer University
  """
  
  import sys
  from PyQt4 import QtGui
  from MainWindow import MainWindow
  from StartupDialog import StartupDialog
  
  def main():
      app = QtGui.QApplication(sys.argv)
      window = MainWindow()
      window.show()
      strdialog = StartupDialog()
      strdialog.show()
      sys.exit(app.exec_())
  
  if __name__ == '__main__':
      main()
new_contents: #!/usr/bin/python
  # -*- coding: utf-8 -*-
  
  """ Customer Segmentation System
  --- Undergraduate Thesis Project ---
  
  Riky Lutfi Hamzah
  Informatics Engineering
  Indonesia Computer University
  """
  
  import sys
  from PyQt4 import QtGui
  from MainWindow import MainWindow
  from StartupDialog import StartupDialog
  
  def main():
      app = QtGui.QApplication(sys.argv)
      window = MainWindow()
      window.show()
      strdialog = StartupDialog()
      strdialog.show()
      sys.exit(app.exec_())
  
  if __name__ == '__main__':
      main()
subject: refactor some file