Run function when selecting a new item in a QComboBox

Question

I have a QComboBox with a few items in it, and I want to run a function when the user selects a new item, different from the current one.

The basic code (without including the items) is..

categories_combo = gui.QComboBox()
categories_combo.connect("currentIndexChanged()", lambda: doSomething())

def doSomething():
    print "it's working"

The general idea works fine for QPushButton's, eg.

my_button.connect("clicked()", lambda: doSomething())

But I can't get anything out of the QComboBox.

Cheers, ST

Answer 1

I needed to put an (int)

categories_combo.connect("currentIndexChanged(int)", lambda: update())