Untitled

#Menu
from PyQt5.QtCore import Qt

from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QRadioButton, QVBoxLayout, QHBoxLayout, QGroupBox, QPushButton

app = QApplication([])

window = QWidget()
window.setWindowTitle('...')
window.resize(200, 300)

lb_title = QLabel('Menu')
btn1 = QPushButton('Play')
btn2 = QPushButton('Settings')
btn3 = QPushButton('Exit')

h_main = QHBoxLayout()


vl_1 = QVBoxLayout()
vl_1.addWidget(lb_title, alignment=Qt.AlignCenter)

vl_1.addWidget(btn1)
vl_1.addWidget(btn2)
vl_1.addWidget(btn3)

h_main.addLayout(vl_1)

window.setLayout(h_main)

window.show()

app.exec_()