import sys
import PyQt4.QtGui as QtGui
import PyQt4.Qt as Qt
import PyQt4.QtCore as QtCore

def proba_slot(i, j):
    print i, j

app =  QtGui.QApplication(sys.argv)
MWin = QtGui.QMenuBar()
table = QtGui.QTableWidget(MWin)
table.setColumnCount(2)
table.setRowCount(2)
table.connect(table, QtCore.SIGNAL("table.cellClicked()"), proba_slot)

MWin.resize(300, 300)
MWin.show()

sys.exit(app.exec_())