print("Too few arguments")		sys.exit(1) 	is_sqlite3 = False	try:		f = open(dbname, "rb")		if f.read(15) == b'SQLite format 3':			is_sqlite3 = True		f.close()	except:		pass 	dbref = DBRef(is_sqlite3, dbname)	db, dbname = dbref.Open("main")	glb = Glb(dbref, db, dbname)	app = QApplication(sys.argv)	glb.app = app	mainwindow = MainWindow(glb)	glb.mainwindow = mainwindow	mainwindow.show()	err = app.exec_()	glb.ShutdownInstances()	db.close()	sys.exit(err) if __name__ == "__main__":	Main()

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