def list_classes(): print() classes = db.get_classes() class_header() for cl in classes: print_class(cl) print()
def choose_class(): print() classes = [] class_header() for i, cl in enumerate(db.get_classes()): print(str(i).rjust(2), end='\t') print_class(cl) classes.append(cl[0]) class_number = input('Please select class by entering its number:') class_number = int(class_number) if class_number < 0 or class_number > len(classes) - 1: return None return classes[class_number]