python - 将数字日期转换为字典中的单词

Question

d = {'A1': ['C',
  '2003-01-01 13:01:00',
  'Lang',
  '2012-06-02 07:00:00',
  '55901',
  '2001-09-05 00:00:00'],
    'A2': ['Eds',
  '2002-02-12 10:07:00',
    '12-3-54']}

我有一个示例字典d，其中包含日期，例如'2003-01-01 13:01:00'，如上所示。 (我的实际 d 的 len 约为 700k，包含各种此类日期。)我想知道是否有一种方法可以将日期转换回单词。例如，'2003-01-01 13:01:00' 将变为 'January 1st, 2003 at 1:01pm'。

我想要的输出是这样的

d = {'A1': ['C',
  'January 1st, 2003 at 1:01pm',
  'Lang',
  'June 2nd, 2012 at 7:00am',
  '55901',
  'September 5th, 2001'],
    'A2': ['Eds',
  'February 12th, 2002 at 10:07am', 
    '12-3-54']}

我怎样才能完成这个输出？

Answer 1

import datetime 
import json

d = {'A1': ['C',
  '2003-01-01 13:01:00',
  'Lang',
  '2012-06-02 07:00:00',
  '55901',
  '2001-09-05 00:00:00'],
    'A2': ['Eds',
  '2002-02-12 10:07:00',
    '12-3-54']}

suf = lambda n: "%d%s"%(n,{1:"st",2:"nd",3:"rd"}.get(n if n<20 else n%10,"th"))
daydict = dict(zip(range(1,32), [suf(n) for n in range(1,32)]))
#construct the datetime according to  the form of 'January 1st, 2003 at 1:01pm'
for k, v in d.items(): 
    index = 1
    for item in v[1::2]:

        tem = datetime.datetime.strptime(item, '%Y-%m-%d %H:%M:%S')
        x = tem.hour-12 if tem.hour > 12 else tem.hour
        y = 'pm' if tem.hour > 12 else 'am'

        d[k][index] = ' '.join([tem.strftime('%B'), daydict[tem.day] + ',', str(tem.year), str(x)+':'+tem.strftime('%M')+y])
        index += 2
print(json.dumps(d, indent=2))

输出

{
  "A1": [
    "C",
    "January 1st, 2003 1:01pm",
    "Lang",
    "June 2nd, 2012 7:00am",
    "55901",
    "September 5th, 2001 0:00am"
  ],
  "A2": [
    "Eds",
    "February 12th, 2002 10:07am",
    "12-3-54"
  ]
}