Question

我必须从python中的字符串中以所需的格式提取开始日期，开始时间和结束日期，结束时间。为此，我写了一个代码：

from datetime import *


#date_time = 'Sun Apr 22 2018 at 02:00 pm to Sun May 13 2018 at 02:00 pm'
#date_time = 'Sun Apr 22 2018 at 02:00 pm'
#date_time = 'Sat Apr 28 2018 at 05:00 pm to 07:00 am'  
#date_time = 'Fri Oct 15 2021'

date_time = 'Sat Aug 01 2020'
#date_time = 'Wed Jan 22 2020 at 01:30 pm'

#date_time = 'Wed Jan 01 2020 to Thu Jan 02 2020'   

delim = 'to'

if delim in date_time:
   start_date_time = date_time.split(delim, 2)[0]
   start_date_time = start_date_time.partition(' ')[2] #remove the first word of the string

   end_date_time = date_time.split(delim, 2)[1]
   end_date_time = end_date_time.strip() #remove the first space in the string
   #end_date_time = end_date_time.partition(' ')[2] #remove the first word of the string

   delim = 'at'

   start_date = start_date_time.split(delim, 2)[0]
   start_date = start_date.rstrip() #remove the space at the end of the string
   start_date = datetime.strptime(start_date, "%b %d %Y")

   start_time = start_date_time.split(delim, 2)[1]
   start_time = start_time.strip()
   start_time = datetime.strptime(start_time, "%I:%M %p")
   start_time = datetime.strftime(start_time, "%H:%M:%S")

   if delim in end_date_time:
      end_date_time = end_date_time.partition(' ')[2] #remove the first word of the string
      end_date = end_date_time.split(delim, 2)[0]
      #print(end_date)
      end_date = end_date.rstrip()
      end_date = datetime.strptime(end_date, "%b %d %Y")
      #print(end_date)

      end_time = end_date_time.split(delim, 2)[1]
      end_time = end_time.strip()
      end_time = datetime.strptime(end_time, "%I:%M %p")
      end_time = datetime.strftime(end_time, "%H:%M:%S")

   else:   
      end_date = start_date
      end_time = end_date_time
      end_time = end_time.strip()
      end_time = end_time.rstrip()
      end_time = datetime.strptime(end_time, "%I:%M %p")
      end_time = datetime.strftime(end_time, "%H:%M:%S")
else: 

   delim = 'at'

   if delim in date_time:
      start_date_time = date_time.partition(' ')[2]
      #end_date_time = start_date_time

      #delim = 'at'

      start_date = start_date_time.split(delim, 2)[0]
      start_date = start_date.rstrip() 
      start_date = datetime.strptime(start_date, "%b %d %Y")

      start_time = start_date_time.split(delim, 2)[1]
      start_time = start_time.strip()
      start_time = datetime.strptime(start_time, "%I:%M %p")
      start_time = datetime.strftime(start_time, "%H:%M:%S")

      #end_date = end_date_time.split(delim, 2)[0]
      #print(end_date)
      #end_date = end_date.rstrip()
      #end_date = datetime.strptime(end_date, "%b %d %Y")
      #print(end_date)
      end_date = start_date
      end_time = ''

   else:
      start_date_time = date_time.partition(' ')[2]
      #end_date_time = start_date_time 

      #start_date = start_date_time.split(delim, 2)[0]
      start_date = start_date_time.rstrip() 
      start_date = datetime.strptime(start_date, "%b %d %Y")

      start_time = ''

      end_date = start_date
      end_time = ''




'''delim = 'at'

start_date = start_date_time.split(delim, 2)[0]
start_date = datetime.strptime(start_date, "%b %d %Y ")

start_time = start_date_time.split(delim, 2)[1]
start_time = start_time.strip()
start_time = datetime.strptime(start_time, "%I:%M %p")
start_time = datetime.strftime(start_time, "%H:%M:%S")

end_date = end_date_time.split(delim, 2)[0]
end_date = datetime.strptime(end_date, "%b %d %Y ")

end_time = end_date_time.split(delim, 2)[1]
end_time = end_time.strip()
end_time = datetime.strptime(end_time, "%I:%M %p")
end_time = datetime.strftime(end_time, "%H:%M:%S")'''


#print(start_date_time)
print(start_date)
print(start_time)
print('-'*40)
#print(end_date_time)
print(end_date)
print(end_time)

对于date_time = 'Fri Oct 15 2021'，它产生的输出正确为：

$ python date_time.py
2021-10-15 00:00:00

----------------------------------------
2021-10-15 00:00:00

但对于另一个类似的字符串date_time = 'Sat Aug 01 2020'，它会产生错误：

$ python date_time.py
Traceback (most recent call last):
  File "date_time.py", line 69, in <module>
    start_time = start_date_time.split(delim, 2)[1]
IndexError: list index out of range

我无法调试代码。

Python脚本的奇怪行为

0 个答案: