Python Dict() 根据日期时间排序

Question

我有一个文件有很多值，如下所示

{'Name':'xyz','Date':'Thu Jun 26 13:14:17 +0000 2008'}
{'Name':'xyz','Date':'Thu Jun 19 13:14:17 +0000 2009'}
{'Name':'xyz','Date':'Thu Jun 26 13:15:17 +0000 2008'}

如何根据日期和时间对这些值进行排序？

Answer 1

如果文件每行有一个，您需要转换为真正的 dict，例如使用 json.loads 或 ast.literal_eval，然后排序:

import json
import datetime

def parse_date(datestr):
    return datetime.datetime.strptime(datestr, '%a %b %m %H:%M:%S %z %Y')

with open(myfilename) as f:
    mydicts = map(json.loads, filter(str.strip, f))
    # This sorts on date value, but leaves them as original str
    # in dict, can convert ahead of time if you want, or not, as you please
    sorteddicts = sorted(mydicts, key=lambda d: parse_date(d['Date'])]