我有以下列表，我需要按升序排序：
tlist = ['10:10 AM - 10:20 AM', '10:20 AM - 10:30 AM', '10:30 AM - 10:40 AM', '10:40 AM - 10:50 AM', '10:50 AM - 11:00 AM', '11:00 AM - 11:10 AM', '11:10 AM - 11:20 AM', '11:20 AM - 11:30 AM', '11:30 AM - 11:40 AM', '11:40 AM - 11:50 AM', '11:50 AM - 12:00 PM', '12:00 PM - 12:10 PM', '12:10 PM - 12:20 PM', '12:20 PM - 12:30 PM', '12:30 PM - 12:40 PM', '12:40 PM - 12:50 PM', '12:50 PM - 1:00 PM', '1:00 PM - 1:10 PM', '1:10 PM - 1:20 PM', '1:20 PM - 1:30 PM', '1:30 PM - 1:40 PM', '1:40 PM - 1:50 PM', '1:50 PM - 2:00 PM', '2:00 PM - 2:10 PM', '2:10 PM - 2:20 PM', '2:20 PM - 2:30 PM', '2:30 PM - 2:40 PM', '2:40 PM - 2:50 PM', '2:50 PM - 3:00 PM', '3:00 PM - 3:10 PM', '3:10 PM - 3:20 PM', '3:20 PM - 3:30 PM', '3:30 PM - 3:40 PM', '3:40 PM - 3:50 PM', '3:50 PM - 4:00 PM', '4:00 PM - 4:10 PM', '4:10 PM - 4:20 PM', '4:20 PM - 4:30 PM', '4:30 PM - 4:40 PM', '4:40 PM - 4:50 PM', '4:50 PM - 5:00 PM', '5:00 PM - 5:10 PM', '5:10 PM - 5:20 PM', '5:20 PM - 5:30 PM', '5:30 PM - 5:40 PM', '5:40 PM - 5:50 PM', '5:50 PM - 6:00 PM', '6:00 PM - 6:10 PM', '6:10 PM - 6:20 PM', '6:20 PM - 6:30 PM', '6:30 PM - 6:40 PM', '6:40 PM - 6:50 PM', '6:50 PM - 7:00 PM', '7:00 PM - 7:10 PM', '7:10 AM - 7:20 AM', '7:10 PM - 7:20 PM', '7:20 AM - 7:30 AM', '7:20 PM - 7:30 PM', '7:30 AM - 7:40 AM', '7:30 PM - 7:40 PM', '7:40 AM - 7:50 AM', '7:40 PM - 7:50 PM', '7:50 AM - 8:00 AM', '7:50 PM - 8:00 PM', '8:00 AM - 8:10 AM', '8:00 PM - 8:10 PM', '8:10 AM - 8:20 AM', '8:10 PM - 8:20 PM', '8:20 AM - 8:30 AM', '8:20 PM - 8:30 PM', '8:30 AM - 8:40 AM', '8:30 PM - 8:40 PM', '8:40 AM - 8:50 AM', '8:40 PM - 8:50 PM', '8:50 AM - 9:00 AM', '8:50 PM - 9:00 PM', '9:00 AM - 9:10 AM', '9:00 PM - 9:10 PM', '9:10 AM - 9:20 AM', '9:10 PM - 9:20 PM', '9:20 AM - 9:30 AM', '9:20 PM - 9:30 PM', '9:30 AM - 9:40 AM', '9:40 AM - 9:50 AM', '9:50 AM - 10:00 AM']
尝试这样做时，我编写了一个迭代器以将每个时间字符串都列为时间对象，但是转换失败。
import time
tlist = ['10:10 AM - 10:20 AM', '10:20 AM - 10:30 AM', '10:30 AM - 10:40 AM', '10:40 AM - 10:50 AM', '10:50 AM - 11:00 AM', '11:00 AM - 11:10 AM', '11:10 AM - 11:20 AM', '11:20 AM - 11:30 AM', '11:30 AM - 11:40 AM', '11:40 AM - 11:50 AM', '11:50 AM - 12:00 PM', '12:00 PM - 12:10 PM', '12:10 PM - 12:20 PM', '12:20 PM - 12:30 PM', '12:30 PM - 12:40 PM', '12:40 PM - 12:50 PM', '12:50 PM - 1:00 PM', '1:00 PM - 1:10 PM', '1:10 PM - 1:20 PM', '1:20 PM - 1:30 PM', '1:30 PM - 1:40 PM', '1:40 PM - 1:50 PM', '1:50 PM - 2:00 PM', '2:00 PM - 2:10 PM', '2:10 PM - 2:20 PM', '2:20 PM - 2:30 PM', '2:30 PM - 2:40 PM', '2:40 PM - 2:50 PM', '2:50 PM - 3:00 PM', '3:00 PM - 3:10 PM', '3:10 PM - 3:20 PM', '3:20 PM - 3:30 PM', '3:30 PM - 3:40 PM', '3:40 PM - 3:50 PM', '3:50 PM - 4:00 PM', '4:00 PM - 4:10 PM', '4:10 PM - 4:20 PM', '4:20 PM - 4:30 PM', '4:30 PM - 4:40 PM', '4:40 PM - 4:50 PM', '4:50 PM - 5:00 PM', '5:00 PM - 5:10 PM', '5:10 PM - 5:20 PM', '5:20 PM - 5:30 PM', '5:30 PM - 5:40 PM', '5:40 PM - 5:50 PM', '5:50 PM - 6:00 PM', '6:00 PM - 6:10 PM', '6:10 PM - 6:20 PM', '6:20 PM - 6:30 PM', '6:30 PM - 6:40 PM', '6:40 PM - 6:50 PM', '6:50 PM - 7:00 PM', '7:00 PM - 7:10 PM', '7:10 AM - 7:20 AM', '7:10 PM - 7:20 PM', '7:20 AM - 7:30 AM', '7:20 PM - 7:30 PM', '7:30 AM - 7:40 AM', '7:30 PM - 7:40 PM', '7:40 AM - 7:50 AM', '7:40 PM - 7:50 PM', '7:50 AM - 8:00 AM', '7:50 PM - 8:00 PM', '8:00 AM - 8:10 AM', '8:00 PM - 8:10 PM', '8:10 AM - 8:20 AM', '8:10 PM - 8:20 PM', '8:20 AM - 8:30 AM', '8:20 PM - 8:30 PM', '8:30 AM - 8:40 AM', '8:30 PM - 8:40 PM', '8:40 AM - 8:50 AM', '8:40 PM - 8:50 PM', '8:50 AM - 9:00 AM', '8:50 PM - 9:00 PM', '9:00 AM - 9:10 AM', '9:00 PM - 9:10 PM', '9:10 AM - 9:20 AM', '9:10 PM - 9:20 PM', '9:20 AM - 9:30 AM', '9:20 PM - 9:30 PM', '9:30 AM - 9:40 AM', '9:40 AM - 9:50 AM', '9:50 AM - 10:00 AM']
for t in tlist:
f = t.split('-')[0]
print(f)
ft = time.strptime(f, "%I:%M %p")
print(f, ft)
我遇到错误：
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
<ipython-input-19-0a2d8195df22> in <module>()
4 f = t.split('-')[0]
5 print(f)
----> 6 ft = time.strptime(f, "%I:%M %p")
7 print(f, ft)
/usr/lib/python3.6/_strptime.py in _strptime_time(data_string, format)
557 """Return a time struct based on the input string and the
558 format string."""
--> 559 tt = _strptime(data_string, format)[0]
560 return time.struct_time(tt[:time._STRUCT_TM_ITEMS])
561
/usr/lib/python3.6/_strptime.py in _strptime(data_string, format)
363 if len(data_string) != found.end():
364 raise ValueError("unconverted data remains: %s" %
--> 365 data_string[found.end():])
366
367 iso_year = year = None
ValueError: unconverted data remains:
如何解决此错误？除了繁琐的遍历列表并转移到中间列表的繁琐方法之外，还有其他更简单的技术来对这些列表进行排序吗？
答案 0 :(得分：2)
这样做
f = t.split('-')[0]
ft = time.strptime(f, "%I:%M %p")
您在每个日期字符串前后都有一个空格（例如'10:10 AM - 10:20 AM'变成'10:10 AM '和' 10:20 AM'）。
这也是错误消息在说什么：
ValueError: unconverted data remains:
strptime尝试将格式%I:%M %p应用于f，但是它有一个空白，不知道要怎么处理。
解决方案之一是
在' - '上分割：f = t.split(' - ')[0]
或
使用strip（f = t.split('-')[0].strip()）（可能是更好的解决方案，因为它更通用）
您还可以将空格包含在格式（time.strptime(f, "%I:%M %p ")中，但这实际上是解决问题，只是等待将来再次中断。
答案 1 :(得分：2)
更改
f = t.split('-')[0]
收件人
f = t.split('-')[0].strip()
在split('-')之后，您将获得2个值exp：'10：10 AM'和'10:20 AM'。因此，它需要删除这些值中的空间。
答案 2 :(得分：1)
使用sorted
例如：
import time
tlist = ['10:10 AM - 10:20 AM', '10:20 AM - 10:30 AM', '10:30 AM - 10:40 AM', '10:40 AM - 10:50 AM', '10:50 AM - 11:00 AM', '11:00 AM - 11:10 AM', '11:10 AM - 11:20 AM', '11:20 AM - 11:30 AM', '11:30 AM - 11:40 AM', '11:40 AM - 11:50 AM', '11:50 AM - 12:00 PM', '12:00 PM - 12:10 PM', '12:10 PM - 12:20 PM', '12:20 PM - 12:30 PM', '12:30 PM - 12:40 PM', '12:40 PM - 12:50 PM', '12:50 PM - 1:00 PM', '1:00 PM - 1:10 PM', '1:10 PM - 1:20 PM', '1:20 PM - 1:30 PM', '1:30 PM - 1:40 PM', '1:40 PM - 1:50 PM', '1:50 PM - 2:00 PM', '2:00 PM - 2:10 PM', '2:10 PM - 2:20 PM', '2:20 PM - 2:30 PM', '2:30 PM - 2:40 PM', '2:40 PM - 2:50 PM', '2:50 PM - 3:00 PM', '3:00 PM - 3:10 PM', '3:10 PM - 3:20 PM', '3:20 PM - 3:30 PM', '3:30 PM - 3:40 PM', '3:40 PM - 3:50 PM', '3:50 PM - 4:00 PM', '4:00 PM - 4:10 PM', '4:10 PM - 4:20 PM', '4:20 PM - 4:30 PM', '4:30 PM - 4:40 PM', '4:40 PM - 4:50 PM', '4:50 PM - 5:00 PM', '5:00 PM - 5:10 PM', '5:10 PM - 5:20 PM', '5:20 PM - 5:30 PM', '5:30 PM - 5:40 PM', '5:40 PM - 5:50 PM', '5:50 PM - 6:00 PM', '6:00 PM - 6:10 PM', '6:10 PM - 6:20 PM', '6:20 PM - 6:30 PM', '6:30 PM - 6:40 PM', '6:40 PM - 6:50 PM', '6:50 PM - 7:00 PM', '7:00 PM - 7:10 PM', '7:10 AM - 7:20 AM', '7:10 PM - 7:20 PM', '7:20 AM - 7:30 AM', '7:20 PM - 7:30 PM', '7:30 AM - 7:40 AM', '7:30 PM - 7:40 PM', '7:40 AM - 7:50 AM', '7:40 PM - 7:50 PM', '7:50 AM - 8:00 AM', '7:50 PM - 8:00 PM', '8:00 AM - 8:10 AM', '8:00 PM - 8:10 PM', '8:10 AM - 8:20 AM', '8:10 PM - 8:20 PM', '8:20 AM - 8:30 AM', '8:20 PM - 8:30 PM', '8:30 AM - 8:40 AM', '8:30 PM - 8:40 PM', '8:40 AM - 8:50 AM', '8:40 PM - 8:50 PM', '8:50 AM - 9:00 AM', '8:50 PM - 9:00 PM', '9:00 AM - 9:10 AM', '9:00 PM - 9:10 PM', '9:10 AM - 9:20 AM', '9:10 PM - 9:20 PM', '9:20 AM - 9:30 AM', '9:20 PM - 9:30 PM', '9:30 AM - 9:40 AM', '9:40 AM - 9:50 AM', '9:50 AM - 10:00 AM']
print(sorted(tlist, key=lambda x: time.strptime(x.split("-")[0].strip(), "%I:%M %p")))
输出：
['7:10 AM - 7:20 AM', '7:20 AM - 7:30 AM', '7:30 AM - 7:40 AM', '7:40 AM - 7:50 AM', '7:50 AM - 8:00 AM', '8:00 AM - 8:10 AM', '8:10 AM - 8:20 AM', '8:20 AM - 8:30 AM', '8:30 AM - 8:40 AM', '8:40 AM - 8:50 AM', '8:50 AM - 9:00 AM', '9:00 AM - 9:10 AM', '9:10 AM - 9:20 AM', '9:20 AM - 9:30 AM', '9:30 AM - 9:40 AM', '9:40 AM - 9:50 AM', '9:50 AM - 10:00 AM', '10:10 AM - 10:20 AM', '10:20 AM - 10:30 AM', '10:30 AM - 10:40 AM', '10:40 AM - 10:50 AM', '10:50 AM - 11:00 AM', '11:00 AM - 11:10 AM', '11:10 AM - 11:20 AM', '11:20 AM - 11:30 AM', '11:30 AM - 11:40 AM', '11:40 AM - 11:50 AM', '11:50 AM - 12:00 PM', '12:00 PM - 12:10 PM', '12:10 PM - 12:20 PM', '12:20 PM - 12:30 PM', '12:30 PM - 12:40 PM', '12:40 PM - 12:50 PM', '12:50 PM - 1:00 PM', '1:00 PM - 1:10 PM', '1:10 PM - 1:20 PM', '1:20 PM - 1:30 PM', '1:30 PM - 1:40 PM', '1:40 PM - 1:50 PM', '1:50 PM - 2:00 PM', '2:00 PM - 2:10 PM', '2:10 PM - 2:20 PM', '2:20 PM - 2:30 PM', '2:30 PM - 2:40 PM', '2:40 PM - 2:50 PM', '2:50 PM - 3:00 PM', '3:00 PM - 3:10 PM', '3:10 PM - 3:20 PM', '3:20 PM - 3:30 PM', '3:30 PM - 3:40 PM', '3:40 PM - 3:50 PM', '3:50 PM - 4:00 PM', '4:00 PM - 4:10 PM', '4:10 PM - 4:20 PM', '4:20 PM - 4:30 PM', '4:30 PM - 4:40 PM', '4:40 PM - 4:50 PM', '4:50 PM - 5:00 PM', '5:00 PM - 5:10 PM', '5:10 PM - 5:20 PM', '5:20 PM - 5:30 PM', '5:30 PM - 5:40 PM', '5:40 PM - 5:50 PM', '5:50 PM - 6:00 PM', '6:00 PM - 6:10 PM', '6:10 PM - 6:20 PM', '6:20 PM - 6:30 PM', '6:30 PM - 6:40 PM', '6:40 PM - 6:50 PM', '6:50 PM - 7:00 PM', '7:00 PM - 7:10 PM', '7:10 PM - 7:20 PM', '7:20 PM - 7:30 PM', '7:30 PM - 7:40 PM', '7:40 PM - 7:50 PM', '7:50 PM - 8:00 PM', '8:00 PM - 8:10 PM', '8:10 PM - 8:20 PM', '8:20 PM - 8:30 PM', '8:30 PM - 8:40 PM', '8:40 PM - 8:50 PM', '8:50 PM - 9:00 PM', '9:00 PM - 9:10 PM', '9:10 PM - 9:20 PM', '9:20 PM - 9:30 PM']