lauro

from PyQt4.QtCore import *
from PyQt4.QtGui import *


class gui(QWidget):
    def __init__(self):
        QWidget.__init__(self)
        self.button = QPushButton(self)
        self.button.setText('click')
        self.button.setObjectName('button1')
        self.show()

        QMetaObject.connectSlotsByName(self)

    def on_button1_clicked(self):
        print 'Clicked'

def main():
    app = QApplication([])
    a = gui()
    app.exec_()

if __name__ == '__main__':
    main()