ValueError:没有足够的值来解包。为什么?

时间:2017-07-23 21:22:50

标签: python file pickle

我正在从网站学习文件管理,我尝试执行某个脚本,但它对我来说效果不佳。

它会在以下行继续返回此错误:city, day, time = line.split()

  

ValueError:没有足够的值来解压缩(预期至少为2,得到0)

我正在尝试按字母顺序排列和pickle转储城市及其时区列表,文本文件有几行如下:

Salt lake city Sun 09:52
San Francisco Sun 00:52
Amsterdam Sun 08:52
Denver Sun 01:52
San Salvador Sun 01:52
Detroit Sun 02:52

这是代码:

import pickle

lines = open("cities_and_times.txt").readlines()
lines.sort()

cities = []
for line in lines:
    *city, day, time = line.split()
    hours, minutes = time.split(":")
    cities.append((" ".join(city), day, (int(hours), int(minutes)) ))

    f_new = open("cities_and_times.pkl", "bw")
    pickle.dump(cities, f_new)

    print(cities)

1 个答案:

答案 0 :(得分:0)

您需要一个if条件,允许您跳过空白行。类似的东西:

if not line:
   continue

# Or do this

if not line:
   pass
else:
   *city, day, time = line.split()