connect button to function pyqt5 code example

Example 1: pyqt5 pushbutton

button = QPushButton('PyQt5 button', self)
button.setToolTip('This is an example button')
button.move(100,70)

Example 2: pyqt5 buttons

b1 = QtWidgets.QPushButton(win)
    b1.setText("click me")
    #b1.move(100,100) to move the button