How to call a terminal in a pyqt application and execute a command in it?

Question

PyQt

There is a desktop mini-application for linux with a button:

#!/usr/bin/python
# coding=utf-8
import sys
from qt import *
a = QApplication(sys.argv)
# Наша функция, которая будет вызвана при нажатии на кнопку

#создание кнопки
btn = QPushButton("Выполнить",None)
#назначить обработчик

a.setMainWidget(btn)
btn.show()
a.exec_loop()

How can I make it so that when the button is pressed, the terminal opens and the command "cd / home" is executed in it?

Answer 1

Answer given here