python - Trigger QLabel text update with QPushButton -


so i've tried read on , baffled! essentially, want modify text variable of label class function in button class. both label , button classes instantiated within class ui_form. i've cut out code possible example.

class button(qtgui.qpushbutton):     def __init__(self, iconpath, iconx, icony, posx, posy, posa, posb, objname, parent=none):         super(button, self).__init__(parent=parent)       def editlabel(self):         self.filename = ntpath.basename(self.samplepath)         edit label class here!  class label(qtgui.qlabel):     def __init__(self, text, posx, posy, posa, posb, objname, parent=none):         super(label, self).__init__(parent=parent)          self.setgeometry(qtcore.qrect(posx, posy, posa, posb))         self.font = qtgui.qfont()         self.font.setpointsize(10)         self.setfont(self.font)         self.setobjectname(objname)         self.text = text         self.settext(qtgui.qapplication.translate("form", "<html><head/><body><p align=\"center\"><span style=\" color:#ffffff;\">"+ self.text +"</span></p></body></html>", none, qtgui.qapplication.unicodeutf8))

the instances of classes created in yet class..

class ui_form(qtgui.qwidget):     def __init__(self):         qtgui.qwidget.__init__(self)         self.setupui(self)      def setupui(self, form):         form.setobjectname("form")         form.resize(591, 591)         self.btn_a1 = button("python/lp_proj/lp_circle_off.png", 49, 49, 30, 40, 41, 41, "btn_a1", self)         self.lab_a1 = label("unassigned", 20, 76, 61, 16, "lab_a1", self)


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