progress_bar.py 文件源码

def refresh(self, cur_len):
        terminal_width = get_terminal_size().columns  # ??????
        info = "%s '%s'...  %.2f%%" % (self.prefix_info,
                                       self.title,
                                       cur_len/self.total * 100)
        while len(info) > terminal_width - 20:
            self.title = self.title[0:-4] + '...'
            info = "%s '%s'...  %.2f%%" % (self.prefix_info,
                                           self.title,
                                           cur_len/self.total * 100)
        end_str = '\r' if cur_len < self.total else '\n'
        print(info, end=end_str)