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Re: how to change the time string into number?

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  Re: how to change the time string into number? luofeiyu <elearn2014@gmail.com> - 2014-08-14 14:52 +0800
    Re: how to change the time string into number? Denis McMahon <denismfmcmahon@gmail.com> - 2014-08-15 14:19 +0000

#76270 — Re: how to change the time string into number?

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in the manual  https://docs.python.org/3.4/library/time.html

%z 	Time zone offset indicating a positive or negative time difference 
from UTC/GMT of the form +HHMM or -HHMM, where H represents decimal hour 
digits and M represents decimal minute digits [-23:59, +23:59]. 	
%Z 	Time zone name (no characters if no time zone exists).


t1='Sat, 09 Aug 2014  07:36:46  '
time.strptime(t1,"%a, %d %b %Y %H:%M:%S ")
time.struct_time(tm_year=2014, tm_mon=8, tm_mday=9, tm_hour=7, 
tm_min=36, tm_sec
=46, tm_wday=5, tm_yday=221, tm_isdst=-1)

 >>> t2='Sat, 09 Aug 2014  07:36:46  -0700'
 >>> time.strptime(t2,"%a, %d %b %Y %H:%M:%S %z")
time.struct_time(tm_year=2014, tm_mon=8, tm_mday=9, tm_hour=7, 
tm_min=36, tm_sec
=46, tm_wday=5, tm_yday=221, tm_isdst=-1)

t1 and t2 is different time ,the timezone in t2 is -0700 ,why we get the 
same result?

 >>> t3='Sat, 09 Aug 2014  07:36:46  +0400'
 >>> time.strptime(t3,"%a, %d %b %Y %H:%M:%S %z")
time.struct_time(tm_year=2014, tm_mon=8, tm_mday=9, tm_hour=7, 
tm_min=36, tm_sec
=46, tm_wday=5, tm_yday=221, tm_isdst=-1)


The Directive   %z  has no any effect here,what is the matter?

On 8/14/2014 10:01 AM, Ben Finney wrote:
> luofeiyu <elearn2014@gmail.com> writes:
>
>> s="Aug"
>>
>> how can i change it into 8 with some python time module?
> What is your purpose here? If you want to parse a text value into a
> structured time object, don't do it piece by piece. Use the
> ‘time.strptime’ function.
>
>      >>> import time
>      >>> input_time_text = "14 Aug 2014"
>      >>> input_time = time.strptime(input_text, "%d %b %Y")
>      >>> input_time.tm_mon
>      8
>

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#76368

On Thu, 14 Aug 2014 14:52:17 +0800, luofeiyu wrote:

> in the manual  https://docs.python.org/3.4/library/time.html
> 
> %z 	Time zone offset indicating a positive or negative time difference
> from UTC/GMT of the form +HHMM or -HHMM, where H represents decimal hour
> digits and M represents decimal minute digits [-23:59, +23:59].
> %Z 	Time zone name (no characters if no time zone exists).
> 
> 
> t1='Sat, 09 Aug 2014  07:36:46  '
> time.strptime(t1,"%a, %d %b %Y %H:%M:%S ")
> time.struct_time(tm_year=2014, tm_mon=8, tm_mday=9, tm_hour=7,
> tm_min=36, tm_sec =46, tm_wday=5, tm_yday=221, tm_isdst=-1)
> 
>  >>> t2='Sat, 09 Aug 2014  07:36:46  -0700' time.strptime(t2,"%a, %d %b
>  >>> %Y %H:%M:%S %z")
> time.struct_time(tm_year=2014, tm_mon=8, tm_mday=9, tm_hour=7,
> tm_min=36, tm_sec =46, tm_wday=5, tm_yday=221, tm_isdst=-1)
> 
> t1 and t2 is different time ,the timezone in t2 is -0700 ,why we get the
> same result?
> 
>  >>> t3='Sat, 09 Aug 2014  07:36:46  +0400' time.strptime(t3,"%a, %d %b
>  >>> %Y %H:%M:%S %z")
> time.struct_time(tm_year=2014, tm_mon=8, tm_mday=9, tm_hour=7,
> tm_min=36, tm_sec =46, tm_wday=5, tm_yday=221, tm_isdst=-1)
> 
> 
> The Directive   %z  has no any effect here,what is the matter?

Please learn to use usenet properly. Comments go below the text they 
refer to.

What version of python are you using? I know what version of the 
documentation you are looking at, but as I explained inj an earlier post, 
the implementation varies between different python versions, and for 
example python 2.7 strptime seems to completely ignore the %z in the 
format string, so again, what version of python are you using?

To check your python version:

$ python
>>> import sys
>>> sys.version

will output something like:

'2.7.3 (default, Feb 27 2014, 19:58:35) \n[GCC 4.6.3]'

for Python 2.7 or:

'3.2.3 (default, Feb 27 2014, 21:31:18) \n[GCC 4.6.3]'

for Python 3.2. Again, I stress, we need to know what version of python 
you are using to help you!

Did you run the code I posted? Did you get the same output as me? If you 
didn't, what was different. If you did get the same output, what do you 
think is wrong with it?

-- 
Denis McMahon, denismfmcmahon@gmail.com

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