PyQt4 - can't receive sender() signal / how to indentify which button is clicked and match it with the appropriate progressbar?

Question

Why i can\'t receive self.sender() output? My point is to identify which button is clicked (to start a download function) and then match the corresponding progress bar for a

Answer 1

def buttonClicked(self):
    buttonHandle = self.sender()
    print buttonHandle

self here would be the Ui_MainWindow which is not a QT object, you probably want to check .sender of MainWindow. so set a class variable of UI_MainWindow to the MainWindow object and check sender of that object.

def setupUi(self, MainWindow):
    self.MainWindow = MainWindow
    ....

def buttonClicked(self):
    buttonHandle = self.MainWindow.sender()
    print buttonHandle