"""Qt transport dependencies; importing set_devices itself never loads Qt.""" try: from PySide6.QtCore import QObject, Signal, QTimer, QElapsedTimer from PySide6.QtSerialPort import QSerialPort, QSerialPortInfo except ImportError: from PySide2.QtCore import QObject, Signal, QTimer, QElapsedTimer from PySide2.QtSerialPort import QSerialPort, QSerialPortInfo