[Tutor] How to unpack python-dateutil-2.0.tar.gz

[Richard D. Moores]

On Thu, Oct 18, 2012 at 9:41 PM, eryksun <eryksun at gmail.com> wrote:
> On Thu, Oct 18, 2012 at 11:55 PM, Steven D'Aprano <steve at pearwood.info> wrote:
>>
>> Have you tried running `date` at the Windows command.com (or cmd.exe,
>> or something, I never remember which)? What does it print?
>>
>> My guess is that it probably prints something like:
>>
>> "Command not found"
>>
>> which clearly cannot be parsed as a date.
>
> Windows has separate date and time commands ('date /t' and 'time /t'),
> but it's simpler to use 'echo %time% %date%' in the shell.
>
> Also, the demo script isn't for Python 3.x. It uses "print" as a
> statement and the "commands" module, which is deprecated in 2.x and
> removed from 3.x.
>
> Try this instead:
>
>     import sys
>     import os
>     import subprocess
>     from dateutil.relativedelta import *
>     from dateutil.easter import *
>     from dateutil.rrule import *
>     from dateutil.parser import *
>     from datetime import *
>
>     if sys.platform == 'win32':
>         cmd = 'echo %time% %date%'
>         shell = True
>     else:
>         cmd = 'date'
>         shell = False
>     datestr = subprocess.check_output(cmd, shell=shell).decode()
>
>     now = parse(datestr)
>     today = now.date()
>     year = rrule(YEARLY,bymonth=8,bymonthday=13,byweekday=FR)[0].year
>     rdelta = relativedelta(easter(year), today)
>     print("Today is:", today)
>     print("Year with next Aug 13th on a Friday is:", year)
>     print("How far is the Easter of that year:", rdelta)
>     print("And the Easter of that year is:", today+rdelta)

Yes! Thanks!

Dick