app.py 文件源码

def __init__(self):
        self.prefix_text = urwid.Text(u' \N{WATCH}  ')
        self.breadcrumbs = urwid.Columns([], dividechars=3)
        self.display_widget = urwid.Columns(
            [('pack', self.prefix_text), self.breadcrumbs])
        super(BreadCrumbBar, self).__init__(self.display_widget)