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pythonpyqtsignals-slots

How to pass an argument to function in a signal?

I have a function:

def pausing(ses):
   if ses.is_paused() == True:
      ses.start()
   else:
      ses.pause()

which is pausing a torrent downloading or resuming it (depends on an actual state of torrent). I want to connect this function with a button, like this:

QtCore.QObject.connect(self.pausebutton, QtCore.SIGNAL(_fromUtf8("clicked()")), pause)

But I don't know how to pass an argument ses to that slot (it's in a different class than the ses, which I want to pass). I don't want to use global variables - how can I resolve my problem?

Solution

  • There are two methods (I am using self.on_button as an example function)

    Something like this:

    button1.clicked.connect(partial(self.on_button, 1))

    And:

    button1.clicked.connect(lambda: self.on_button(1))