def createButtons(self):
        for d_name in dic:
            btn = ButtonIcon(d_name)
            file_extension = get_extension(d_name)
            if file_extension is False:
                print(d_name, " no exist")
                continue
            btn.setToolTipImage('./MakeIMG/'+str(dic[d_name])+'.'+file_extension)
            # btn = QPushButton(d_name, self)
            # btn.clicked.connect(lambda state, x=d_name: self.btn_clicked(x))
            # btn.setToolTip('<img src="{0}" height={1} width:{2}>'.format("./MakeIMG/"+str(dic[d_name]), '500', '500'))
            self.button_map[btn.text()] = btn

def get_extension(d_name):
    try:
        return imghdr.what('./MakeIMG/' + str(dic[d_name]) + '.gif')
    except FileNotFoundError:
        try:
            return imghdr.what('./MakeIMG/' + str(dic[d_name]) + '.png')
        except FileNotFoundError:
            try:
                return imghdr.what('./MakeIMG/' + str(dic[d_name]) + '.jpg')
            except FileNotFoundError:
                return False