class Record():
    def __init__(self):
        self.builder = Gtk.Builder()
        self.builder.add_from_file("test.ui")
        self.builder.connect_signals(self)

        self.workingfolder = self.builder.get_object("workingfolder")
        self.workingfolder.connect("file-set", self.workingfolder_set)

    def workingfolder_set(self, widget):
        os.path.expanduser(widget.get_filename())